Cheesy Chicken and Broccoli Casserole

By Eric Wood

4.42 / 5

15min

35min

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1 teaspoon unsalted butter or as needed
2 each skinless, boneless chicken breasts cubed
3 cups broccoli finely chopped
2 (10.5 ounce) cans condensed cream of chicken soup
1 cup shredded Cheddar cheese
1 cup shredded Parmesan cheese divided
½ cup shredded mozzarella cheese
½ cup sour cream
1 pinch ground black pepper to taste