Broccoli Casserole - Healthy Broccoli Casserole - NO cream of anything soup!! Loaded with broccoli, onion, red bell pepper and mushrooms. Top with cheddar AND parmesan cheese! This is seriously DELICIOUS! Can make ahead and refrigerate or freeze for later! Onion, red bell pepper, mushrooms, salt, pepper, flour, milk, cheddar, parmesan, broccoli, ritz crackers, butter. #broccoli #casserole #sidedish
Preheat oven to 350ºF. Lightly spray a 9x13-inch pan with cooking spray.
Heat oil in large skillet over medium-high heat. Add onion, bell pepper, mushrooms, salt and pepper. Cook until vegetables are soft and lightly brown.
Sprinkle flour over vegetables. Cook for 1 minute. Slowly add milk and bring to a boil. Stir frequently. Cook about 3 minutes until mixture starts to thicken and is smooth.
Remove from heat. Stir in cheeses and broccoli. Pour into prepared pan.
Top broccoli mixture with crushed Ritz crackers and dot with butter.