Easy Cheesy Broccoli Bake

 This is a recipe given to me by my sister-in-law.  My husband absolutely lives it, and I think we lived on it for a month at one point.  I'm pretty sure I gained a few pounds as well.  It's really good and great for any potluck. 

Easy Cheesy Broccoli Bake

  4 pkg. (16 oz packages) frozen chopped broccoli, cooked
  2 cans cream of mushroom soup
  2 cups mayonnaise
  4 eggs
  1 large onion
  1 cup grated cheese

  Topping:
  

   1/2 cup butter, melted
    2 cups grated cheese
    2 cups ritz cracker crumbs

Mix soup, mayo, eggs and onion.  Add cheese and broccoli.  

Pour into 9 x 13 pan.  Crumble on topping and bake at 350 for 45-50 minutes.