Brunch Casserole for crockpot

1 1/2 lb ground beef
1 large onion; finely chopped
2 T olive oil or butter
2 garlic cloves; minced
1-4 oz. mushrooms -- sliced, drained
2 t salt
1/2 T oregano -- leaf
1/2 T nutmeg
3 T cornstarch
6 eggs -- beaten
1/2 pk chopped frozen spinach, drained
1/4 c rice milk -- scalded
1/2 c sharp cheddar cheese; grated

In skillet, lightly brown ground beef and onion in olive oil; drain well. Place in well-greased crock-pot. Stir in remaining ingredients except eggs, milk and cheese until well blended. Beat eggs and milk together. Pour over other ingredients; stir well. Dust with additional nutmeg. Cover and cook on LOW setting for 7 to 10 hours or until firm. Just before serving, sprinkle with grated cheese. 6 to 8 servings