Broccoli Casserole

Ingredients
- 2 10 oz pkg frozen broccoli
- 1 Tbsp grated onion
- 1 can cream of mushroom soup
- 34 c mayonnaise
- 1 12 c grated cheese
- Ritz cracker crumbs
Directions
- Mix all ingredients together and put in casserole dish
- Top with some of the cheese and Ritz crackers
- Bake at 350 for 30 minutes