Mom's Creamy Chicken and Broccoli Casserole

INGREDIENTS

12 oz

Rotisserie chicken breast, skinless boneless

1 cup

Prechopped onion

2 8 ounce packages

Presliced mushrooms

1 12 ounce package

Steam-in-bag broccoli florets

1/4 cup

Canola mayonnaise

3 tbsp

All-purpose flour

1/2 tsp

Black pepper, freshly ground

1/4 tsp

Salt

1 tbsp

Canola oil

2 oz

Cheddar cheese, sharp

1/2 cup

Greek yogurt, plain fat-free

1 1/2 cups

Milk, fat-free

1 oz

Parmesan cheese, grated