12 Easy Dinner Casseroles for Simple Oven Weeknights

Mixing bowl, baking dish, almost no technique.

Easy dinner casseroles should ask for short ingredient lists, jarred sauces, and cooked proteins. This simple oven roundup keeps ravioli, rotisserie chicken, salsa verde stacks, cheeseburger mac, pesto tortellini, and pizza bubble-up realistic for busy nights.

Related pans: casserole recipes for family dinner, casseroles for easy weeknights, easy family-favorite casserole dinners, and family dinner casserole recipes.

Prep	10–20 min
Cook	15–45 min
Total	30–60 min
Servings	4–8
Difficulty	Easy

1. Five-Ingredient Ravioli Casserole

Frozen ravioli, marinara, mozzarella, Parmesan, and Italian seasoning—five ingredients for easy dinner casseroles with almost no technique.

Prep 10 min · Cook 40 min · Total 50 min · Serves 6

Ingredients

• 25 oz frozen cheese ravioli
• 1 jar (24 oz) marinara
• 2 cups shredded mozzarella
• 1/2 cup grated Parmesan
• 1 tsp Italian seasoning

Steps

1. Heat oven to 375°F. Layer sauce, frozen ravioli, seasoning, and cheeses in a greased dish; repeat.
2. Cover and bake 30 minutes. Uncover 10 minutes until bubbly and ravioli is hot throughout.
3. Rest 5 minutes. Refrigerate leftovers within 2 hours; reheat to 165°F.

Tip: Keep ravioli frozen for neat layers.

2. Rotisserie Chicken Broccoli Bake

Shredded rotisserie chicken, steam-bag broccoli, cream soup, and cheese bake into a simple oven meal.

Prep 15 min · Cook 25 min · Total 40 min · Serves 6

Ingredients

• 3 cups shredded rotisserie chicken
• 4 cups broccoli florets (fresh or steam-bag)
• 1 can cream of chicken soup
• 1/2 cup milk
• 2 cups shredded cheddar
• 1/2 tsp garlic powder

Steps

1. Heat oven to 375°F. Steam broccoli until just tender.
2. Mix chicken, broccoli, soup, milk, garlic powder, and 1 1/2 cups cheese in a dish. Top with remaining cheese.
3. Bake 25 minutes until hot (165°F) and bubbly.
4. Rest 5 minutes. Refrigerate leftovers within 2 hours.

Tip: Pat broccoli dry so the sauce stays thick.

3. Salsa Verde Tortilla Casserole

Jarred salsa verde, tortillas, chicken, and cheese stack into a bright, simple oven casserole.

Prep 15 min · Cook 30 min · Total 45 min · Serves 6

Ingredients

• 3 cups shredded cooked chicken
• 2 cups salsa verde
• 8 corn tortillas, torn
• 2 cups shredded cheese
• 1/2 cup sour cream, optional

Steps

1. Heat oven to 375°F. Layer tortillas, chicken, salsa verde, and cheese; repeat.
2. Bake 25–30 minutes until hot (165°F) and cheese melts.
3. Rest 5 minutes; add sour cream if using.
4. Refrigerate leftovers within 2 hours.

Tip: Choose mild salsa verde for sensitive palates.

4. Cheeseburger Mac Casserole

Elbows, browned beef, ketchup-mustard seasoning, and cheddar capture cheeseburger night in one dish.

Prep 20 min · Cook 20 min · Total 40 min · Serves 6

Ingredients

• 12 oz elbow macaroni
• 1 lb ground beef
• 1/4 cup ketchup
• 1 Tbsp yellow mustard
• 1/2 cup pickles, chopped, optional
• 2 cups shredded cheddar
• 1/2 cup milk
• 1/2 tsp salt
• 1/2 tsp onion powder

Steps

1. Heat oven to 375°F. Cook pasta; drain. Brown beef to 160°F; drain.
2. Mix pasta, beef, ketchup, mustard, milk, onion powder, salt, pickles, and 1 1/2 cups cheese.
3. Top with remaining cheese. Bake 20 minutes until hot.
4. Rest 5 minutes. Refrigerate leftovers within 2 hours.

Tip: Add pickles after baking if you want more crunch.

5. Pesto Tortellini Bake

Refrigerated tortellini, jarred pesto, cream, and mozzarella—short list, big payoff.

Prep 10 min · Cook 20 min · Total 30 min · Serves 4–6

Ingredients

• 20 oz refrigerated cheese tortellini
• 1/3 cup basil pesto
• 1/2 cup cream or milk
• 1 1/2 cups mozzarella
• 1 cup cherry tomatoes, optional

Steps

1. Heat oven to 375°F. Cook tortellini 1 minute shy; drain.
2. Toss with pesto, cream, tomatoes, and half the mozzarella. Top with remaining cheese.
3. Bake 15–20 minutes until hot and melted.
4. Rest 5 minutes. Refrigerate leftovers within 2 hours.

Tip: Keep heat moderate—pesto can brown if overbaked.

6. Hash Brown Sausage Dinner Casserole

Frozen hash browns, cooked sausage, eggs, and cheese for a simple breakfast-for-dinner oven meal.

Prep 15 min · Cook 45 min · Total 60 min · Serves 8

Ingredients

• 1 bag (20 oz) frozen hash browns
• 2 cups cooked sausage crumbles (160°F)
• 8 large eggs
• 1 cup milk
• 2 cups shredded cheddar
• 1/2 tsp salt
• 1/2 tsp pepper

Steps

1. Heat oven to 375°F. Spread hash browns and sausage in a greased dish.
2. Whisk eggs, milk, salt, and pepper; pour over. Top with cheese.
3. Bake 40–45 minutes until center is set and hot.
4. Rest 5 minutes. Refrigerate leftovers within 2 hours; reheat to 165°F.

Tip: Use pre-cooked sausage links crumbled to save a pan.

7. BBQ Chicken Cornbread Casserole

BBQ chicken under a cornbread mix topping—jar sauce and rotisserie chicken keep it simple.

Prep 15 min · Cook 30 min · Total 45 min · Serves 6

Ingredients

• 3 cups shredded cooked chicken
• 1 cup BBQ sauce
• 1 cup corn
• 1 box cornbread mix + package ingredients
• 1 cup shredded cheddar

Steps

1. Heat oven to 375°F. Mix chicken, BBQ sauce, corn, and cheese in a dish.
2. Prepare cornbread batter; spread on top.
3. Bake 25–30 minutes until cornbread is done and chicken is 165°F.
4. Rest 5 minutes. Refrigerate leftovers within 2 hours.

Tip: Spread batter gently so it stays on top.

8. Spinach Mushroom Pasta Bake

Short pasta, jarred Alfredo or marinara, spinach, and mushrooms for a simple meatless oven pan.

Prep 20 min · Cook 20 min · Total 40 min · Serves 6

Ingredients

• 12 oz short pasta
• 8 oz mushrooms, sliced
• 3 cups baby spinach
• 1 jar Alfredo or marinara
• 2 cups mozzarella
• 1 Tbsp oil
• 1/2 tsp garlic powder

Steps

1. Heat oven to 375°F. Cook pasta; drain. Sauté mushrooms in oil; wilt spinach.
2. Toss pasta with sauce, vegetables, and garlic powder. Top with cheese.
3. Bake 20 minutes until hot and melted.
4. Rest 5 minutes. Refrigerate leftovers within 2 hours.

Tip: Squeeze wilted spinach lightly if it releases a lot of water.

9. Frozen Meatball Pasta Bake

Frozen meatballs, marinara, and pasta bake under mozzarella—almost assembly-only.

Prep 15 min · Cook 30 min · Total 45 min · Serves 6

Ingredients

• 12 oz short pasta
• 20–24 frozen cooked meatballs
• 1 jar marinara
• 2 cups mozzarella
• 1 tsp Italian seasoning

Steps

1. Heat oven to 375°F. Cook pasta; drain. Mix with marinara, seasoning, and meatballs in a dish.
2. Top with mozzarella. Bake 25–30 minutes until meatballs are hot (165°F) and cheese melts.
3. Rest 5 minutes. Refrigerate leftovers within 2 hours.

Tip: Cut large meatballs in half so they heat through faster.

10. Tuna Melt Casserole

Tuna, pasta, cheese, and a crunchy topping capture tuna melt energy without frying sandwiches.

Prep 15 min · Cook 25 min · Total 40 min · Serves 6

Ingredients

• 12 oz short pasta
• 2 cans tuna, drained
• 1 can cream of mushroom or cheddar soup
• 1 cup milk
• 2 cups shredded cheddar
• 1 cup crushed crackers
• 1/2 tsp pepper

Steps

1. Heat oven to 375°F. Cook pasta; drain. Mix with tuna, soup, milk, pepper, and 1 1/2 cups cheese.
2. Top with remaining cheese and crackers. Bake 20–25 minutes until bubbly.
3. Rest 5 minutes. Refrigerate leftovers within 2 hours.

Tip: Drain tuna well for a creamier sauce.

11. Fajita Chicken Casserole

Chicken, peppers, salsa, rice, and cheese dump into a dish for fajita flavor without the skillet dance.

Prep 15 min · Cook 25 min · Total 40 min · Serves 6

Ingredients

• 3 cups shredded cooked chicken
• 2 cups cooked rice
• 2 cups frozen pepper stir-fry mix, thawed
• 1 1/2 cups salsa
• 2 cups shredded Mexican cheese
• 1 tsp fajita or taco seasoning

Steps

1. Heat oven to 375°F. Mix chicken, rice, peppers, salsa, seasoning, and 1 cup cheese.
2. Top with remaining cheese. Bake 25 minutes until hot (165°F).
3. Rest 5 minutes. Serve with tortillas or chips if desired.
4. Refrigerate leftovers within 2 hours.

Tip: Use leftover rice so the pan is not watery.

12. Pizza Bubble-Up Bake

Biscuit pieces, pizza sauce, mozzarella, and pepperoni bubble up into a pull-apart pizza casserole.

Prep 10 min · Cook 30 min · Total 40 min · Serves 6

Ingredients

• 1 can refrigerated biscuits, quartered
• 1 1/2 cups pizza sauce
• 2 cups shredded mozzarella
• 1 cup sliced pepperoni
• 1 tsp Italian seasoning
• Optional: cooked sausage (160°F)

Steps

1. Heat oven to 375°F. Toss biscuit pieces with sauce, seasoning, half the cheese, pepperoni, and optional sausage.
2. Spread in a greased dish; top with remaining cheese.
3. Bake 25–30 minutes until biscuits are cooked through and cheese is golden.
4. Rest 5 minutes. Refrigerate leftovers within 2 hours.

Tip: Space biscuit pieces so centers bake fully.

FAQ

What makes a casserole truly easy?

Five to eight ingredients, jarred sauce, pre-cooked protein, and one baking dish.

Can I skip boiling pasta?

Use frozen ravioli or dump-and-bake styles; otherwise undercook pasta before baking.

How do I avoid soggy biscuit tops?

Do not overcrowd pieces, and bake until the centers are cooked through.

What if I only have rotisserie chicken?

Use it in the broccoli bake, salsa verde stack, BBQ cornbread, or fajita rice pan.

How should I handle leftovers safely?

Refrigerate within 2 hours; reheat to 165°F. See the USDA safe temperature chart and our recipe food safety disclaimer.

Wrap-Up

Easy dinner casseroles stay simple with five-ingredient ravioli, rotisserie broccoli bake, salsa verde tortillas, cheeseburger mac, pesto tortellini, hash brown sausage, BBQ cornbread chicken, spinach mushroom pasta, meatball pasta, tuna melt, fajita chicken rice, and pizza bubble-up.

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