Looking for high protein casseroles that still taste like real comfort food? Here are 15 easy casserole recipes that pack in serious protein without skipping the cheese.

Casserole night used to mean carbs on carbs on carbs at our house, and not much else.

These 15 high protein casseroles fix that without losing the cozy, one-dish comfort only a casserole can do. You’ll find chicken, beef, turkey, and a couple of breakfast bakes here, all built around real protein instead of just pasta and cream soup. Most of these double as healthy casseroles for leftovers too, so dinner tonight becomes lunch tomorrow.

Here’s the lineup.

HIGH PROTEIN CASSEROLE RECIPES

1. Buffalo Chicken Casserole Bake

Shredded chicken breast does the heavy lifting here, landing close to 30g protein per serving once you count the cream cheese and cheddar. Buffalo sauce and ranch give it that wing-night flavor without an actual fryer in sight. It’s one of those high protein casseroles that disappears fast at family dinner, with barely any leftovers to plan around.

• 3 cups shredded cooked chicken breast
• 1 cup buffalo sauce
• 8 oz cream cheese, softened
• ½ cup ranch dressing
• 1 cup shredded cheddar
• 1 cup shredded mozzarella
• 2 green onions, sliced

1. Preheat the oven to 375°F.
2. Mix chicken, buffalo sauce, cream cheese, and ranch together until combined.
3. Spread into a greased baking dish and top with both cheeses.
4. Bake 20-25 minutes until bubbly and golden, then top with green onions.

2. King Ranch Chicken Casserole

This Texas classic usually leans on canned soup, but swapping in plain Greek yogurt keeps the creaminess and adds a quiet protein boost (around 26g per serving once the chicken and cheese are factored in). Diced tomatoes and green chilies do most of the flavor work, so nothing is missing from the original. It’s a solid high protein dinner option for nights when everyone wants something a little spicy but still familiar.

• 3 cups shredded cooked chicken
• 8 corn tortillas, torn into pieces
• 10 oz can diced tomatoes with green chilies
• 1 cup plain Greek yogurt
• 1 onion, diced
• 1 bell pepper, diced
• 2 cups shredded Mexican cheese blend

1. Preheat the oven to 350°F.
2. Sauté onion and pepper until soft, then stir in chicken, tomatoes, and yogurt.
3. Layer torn tortillas, the chicken mixture, and cheese in a baking dish, repeating once.
4. Bake 30 minutes until the cheese is melted and the edges are bubbling.

3. Cheesy Ground Beef Taco Casserole

Lean ground beef and black beans push this one past 28g protein per serving, and the cheese on top makes it feel like a treat instead of a health move. Taco night leftovers reheat just as well the next day, maybe better. This is one of the easiest of these easy casserole recipes if you’re short on time, since it’s really just brown, mix, and bake.

• 1½ lb lean ground beef
• 1 packet taco seasoning
• 1 cup black beans, drained
• 1 cup corn
• 1 cup salsa
• 2 cups shredded cheddar
• Sliced jalapeños, optional

1. Brown the ground beef and drain excess fat, then stir in taco seasoning, beans, corn, and salsa.
2. Spread into a baking dish and top with cheese.
3. Bake at 375°F for 20 minutes until the cheese is melted and bubbling.
4. Top with jalapeños before serving if you want the heat.

💡 Tip: Frozen corn gives a little more bite than canned if you want extra texture.

4. Chicken Fajita Rice Casserole

Diced chicken breast and Monterey Jack keep the protein count around 27g per serving, while peppers and onions handle the fajita flavor without any tortillas needed. Cumin and salsa carry most of the seasoning, so there’s no long spice list to track down. It works well for leftovers too, since the rice holds moisture better than most casseroles do after a day in the fridge (the chicken can dry out a touch by day three, so eat it within 48 hours if you can).

• 2 cups cooked chicken breast, diced
• 2 cups cooked rice
• 1 bell pepper, sliced
• 1 onion, sliced
• 1 cup salsa
• 1 tsp cumin
• 1½ cups shredded Monterey Jack

1. Toss chicken, rice, peppers, onion, salsa, and cumin together in a baking dish.
2. Top with cheese.
3. Cover and bake at 375°F for 25 minutes, then uncover for the last 5 minutes to brown the cheesee.

5. Philly Cheesesteak Skillet Casserole

Steak and provolone make this one of the more protein-dense options on the list, around 32g per serving, and skipping the bread keeps it firmly in low carb dinner territory. Mushrooms and peppers add bulk without adding many carbs, which matters if you’re trying to keep this in regular rotation among your low carb casseroles. It’s not the quickest of the fifteen, since searing the steak properly takes more attention than most of the others here, but it’s worth the extra few minutes.

• 1½ lb thinly sliced steak or ground beef
• 1 green bell pepper, sliced
• 1 onion, sliced
• 8 oz mushrooms, sliced
• 8 slices provolone cheese
• Salt and pepper, to taste

1. Sear the steak in a hot oven-safe skillet, then remove and set aside.
2. Sauté peppers, onion, and mushrooms in the same skillet until soft.
3. Return the steak to the skillet, season, and top with provolone.
4. Broil for 2-3 minutes until the cheese melts and browns slightly.

6. Turkey Enchilada Casserole

Ground turkey keeps this lighter than the beef version while still landing around 26g protein per serving thanks to the beans layered in. Red enchilada sauce and corn tortillas keep the flavor classic, nothing fancy required. It reheats well for lunch the next day, which makes it a smart pick if you’re cooking once for two meals.

• 1½ lb ground turkey
• 1 small onion, diced
• 10 oz can red enchilada sauce
• 8 corn tortillas, torn
• 15 oz can black beans, drained
• 2 cups shredded cheddar

1. Brown the ground turkey and onion, then stir in half the enchilada sauce and the beans.
2. Layer tortillas, the turkey mixture, and cheese in a baking dish, repeating once, then top with remaining sauce.
3. Bake at 375°F for 25 minutes until bubbling.

7. Baked Chicken Parmesan Pasta Casserole

It’s a high protein dinner for nights when the kids want pasta and you want something more substantial than plain noodles.

• 3 cups cooked chicken breast, diced
• 12 oz pasta, cooked
• 24 oz marinara sauce
• 1½ cups shredded mozzarella
• ¼ cup grated parmesan
• ½ cup panko breadcrumbs

1. Toss the cooked pasta, chicken, and marinara together in a baking dish.
2. Top with mozzarella, parmesan, and panko.
3. Bake at 375°F for 20-25 minutes until the top is golden and the sauce is bubbling.

💡 Tip: Swap half the pasta for extra diced chicken if you want to push this one closer to 35g protein per serving.

8. Sausage And Egg Overnight Breakfast Casserole

Eggs and turkey breakfast sausage (an easy swap in for the usual pork sausage) bring this one to around 24g protein per serving, more than most breakfast casseroles manage.

Assembling it the night before means there’s nothing to do in the morning except slide it into the oven. It’s an easy one for a houseful of family on a weekend, since it bakes while everyone’s still waking up.

• 1 lb turkey breakfast sausage
• 8 large eggs
• 1½ cups milk
• 6 cups cubed bread
• 1½ cups shredded cheddar
• 1 tsp dry mustard
• Salt and pepper, to taste

1. Brown and drain the turkey sausage, then layer it with the bread cubes in a greased baking dish.
2. Whisk together eggs, milk, mustard, salt, and pepper, then pour over the bread and sausage.
3. Top with cheese, cover, and refrigerate overnight.
4. Bake uncovered at 350°F for 40-45 minutes until set in the middle.

9. Ground Turkey Shepherd’s Pie Casserole

Ground turkey under a layer of mashed potatoes keeps this around 25g protein per serving, and it’s one of the more genuinely healthy casseroles here since there’s no canned soup or heavy cream involved. Mixed vegetables stretch the filling further without watering down the flavor. It’s comfort food that doesn’t feel like you’re cutting corners on nutrition.

• 1½ lb ground turkey
• 2 cups mixed frozen vegetables
• 1 cup beef or chicken broth
• 1 tbsp tomato paste
• 4 cups mashed potatoes, prepared
• 1 cup shredded cheddar, optional

1. Brown the ground turkey, then stir in vegetables, broth, and tomato paste, and simmer 5-7 minutes until thickened.
2. Spread into a baking dish and top with mashed potatoes (and cheese, if using).
3. Bake at 400°F for 20 minutes until the top is lightly browned.

10. Chili Mac And Cheese Bake

Ground beef, kidney beans, and a generous layer of cheddar bring this one close to 30g protein per serving, earning it a spot among the easy casserole recipes on this list. It comes together in one pot before it ever sees the oven, so cleanup is minimal. Leftovers actually taste better the next day once the macaroni has soaked up more of the chili flavor.

• 1½ lb lean ground beef
• 1 packet chili seasoning
• 15 oz can kidney beans, drained
• 15 oz can diced tomatoes
• 12 oz elbow macaroni, cooked
• 2 cups shredded cheddar

1. Brown the ground beef, then stir in chili seasoning, beans, and tomatoes, and simmer 10 minutes.
2. Fold in the cooked macaroni and half the cheese.
3. Transfer to a baking dish, top with remaining cheese, and bake at 375°F for 15 minutes until melted.

11. Cheesy Chicken Broccoli Rice Casserole

Chicken breast and broccoli keep this one around 27g protein per serving while staying lighter than the cream-soup versions most people grew up on. Greek yogurt stands in for the usual mayo or sour cream, adding protein instead of just fat. It’s one of the better healthy casseroles for anyone trying to sneak more vegetables into a family dinner without a fight.

• 3 cups cooked chicken breast, diced
• 3 cups broccoli florets, steamed
• 2 cups cooked rice
• 1½ cups shredded cheddar
• 1 cup plain Greek yogurt
• ½ cup chicken broth

1. Mix chicken, broccoli, rice, yogurt, and broth together in a baking dish.
2. Top with cheese.
3. Bake at 375°F for 20-25 minutes until heated through and the cheese is melted.

⚠️ Budget Note: Frozen broccoli works just as well as fresh here and costs less.

12. Baked Ziti With Meat Sauce

Ground beef and ricotta push this one to about 26g protein per serving, even with all that pasta working against the carb count. It’s one of the easiest dishes to make ahead and freeze, since baked ziti holds up better in the freezer than most casseroles do. Just thaw and bake an extra 10 minutes if you’re cooking it straight from frozen.

• 1 lb lean ground beef
• 24 oz marinara sauce
• 12 oz ziti pasta, cooked
• 15 oz ricotta cheese
• 1 large egg
• 2 cups shredded mozzarella

1. Brown the ground beef and stir in the marinara sauce.
2. Mix the ricotta with the egg, then toss with the cooked pasta.
3. Layer the pasta mixture and meat sauce in a baking dish, top with mozzarella.
4. Bake at 375°F for 25 minutes until bubbly and golden.

13. Salisbury Steak Meatball Casserole With Gravy

Ground beef meatballs in a mushroom gravy land around 28g protein per serving, no beans or beans-adjacent fillers required. The gravy does need a few minutes of constant whisking to avoid lumps (worth the small effort for how rich it turns out). This one feels more like a Sunday dinner than a weeknight casserole, but it reheats fine if you’ve got leftover meatballs.

• 1½ lb ground beef
• ⅓ cup breadcrumbs
• 1 egg
• 2 cups beef broth
• 2 tbsp flour
• 1 onion, sliced
• 8 oz mushrooms, sliced

1. Mix ground beef, breadcrumbs, and egg, then form into meatballs and brown in an oven-safe skillet.
2. Remove the meatballs, sauté onion and mushrooms in the same pan, then whisk in flour and broth to make the gravy.
3. Return the meatballs to the gravy and transfer to a baking dish.
4. Bake at 375°F for 15-20 minutes until the gravy thickens and the meatballs are cooked through.

14. Cheesy Tuna Noodle Casserole

Two cans of tuna keep this one around 24g protein per serving, proving the classic doesn’t need much updating to stay relevant. Peas add a little color and fiber without changing the flavor much. It’s one of the cheapest casseroles on this list, which makes it an easy repeat when the grocery budget is tight that week.

• 2 cans tuna, drained
• 8 oz egg noodles, cooked
• 1 cup frozen peas
• 10.5 oz cream of mushroom soup (or homemade white sauce)
• 1 cup milk
• 1½ cups shredded cheddar

1. Stir together tuna, noodles, peas, soup, and milk in a baking dish.
2. Top with cheese.
3. Bake at 375°F for 20 minutes until bubbling and the top is lightly golden.

💡 Tip: Crushed potato chips on top instead of breadcrumbs adds a nice crunch and uses up that half-empty bag in the pantry.