3 broccoli casserole make ahead Recipes

head of broccoli (about 8 cups, and cut into large florets ), mayonnaise, sour cream, melted butter, garlic powder (or to taste), seasoning salt, black pepper, old cheddar cheese (cut into about 1/2-inch cubes or shredded ), onion, finely chopped, parmesan cheese (or to taste)

stove top chicken stuffing mix, sliced fresh mushrooms, onion, chopped, butter, garlic cloves, minced, cubed cooked chicken, frozen corn, thawed, frozen chopped broccoli, thawed, reduced-fat reduced-sodium condensed cream of mushroom soup, undiluted, milk, reduced-fat sour cream, reduced-fat mayonnaise, pepper