In a slow cooker to heat the oil for "Baking", add the frozen mushrooms. To fall asleep on top of chopped onions, to wait when the mushrooms get water.

Of frozen broccoli to put in the bowl for steaming, place in a slow cooker, which prepares the mushrooms and onion, and close the lid. Cook about 20 minutes. Then set aside a container of prepared broccoli to the side and let the water fully boil, just fry mushrooms with onions.

Beat eggs with grated cheese and crushed clove of garlic, salt pepper to taste.

Add the broccoli to the mushrooms, stir, pour egg mixture and cook with the lid closed for 10 minutes in the "heating"mode.

To be honest, I casserole never cooked and this is my first and very pleasant experience. Recipe invented itself! Any coincidence a coincidence!