4 Ingredient Chicken Pasta Casserole

Recipe By Rachel Anne |Updated 2026-01-30 |19 Comments

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4 Ingredient Chicken Pasta Casserole

PREP10 min

COOK35 min

This 4 Ingredient Chicken Pasta Casserole recipe is the ultimate easy comfort food—cheesy, creamy, and ready in under an hour. Perfect for busy weeknights!

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6SERVINGS

Ingredients

3 cups cooked chicken, shredded or diced
12 oz uncooked penne or rotini pasta
1 (15 oz) jar Alfredo sauce
2 cups shredded mozzarella cheese, divided

Instructions

1
Preheat your oven to 350°F (175°C). Lightly grease a 9x13-inch casserole dish.
2
Boil the pasta in salted water according to package instructions until al dente (about 8-9 minutes). Drain well.
3
In a large bowl, mix together the cooked chicken, drained pasta, Alfredo sauce, and 1 1/2 cups mozzarella. Stir until evenly coated.
4
Spoon the mixture into the prepared baking dish. Sprinkle the remaining mozzarella evenly over the top.
5
Bake for 25-30 minutes or until hot and bubbly. For a golden cheesy top, broil on high for 2-3 minutes at the end, watching carefully.
6
Remove from oven, let stand for 5 minutes, then serve warm!