Crock pot Brunch Casserole Recipe What you need: 1 1/2 lb Ground beef 1  Onion — large; finely chopped 2 tb Olive oil or butter 2  Garlic — cloves; minced 1 4oz can Mushrooms — sliced; drained 2 tsp Salt 1/2 tsp Nutmeg 1/2 tsp Oregano — leaf 1/2 pk Spinach — chopped; frozen (thawed [...]