1 stick of butter
1 Bunch Broccoli
1 11 oz. can of mushroom soup (Progresso makes one that is gluten free)
1 Cup mayonnaise
1 Cup grated cheddar cheese
Cook the onions until they are starting to caramelize, 20-30 minutes.
Add the eggs to the casserole dish and mix everything together.
Grate a cup of cheese.
Sprinkle on top.