Brunch Casserole

1-1/2 pounds Ground beef
1 each Onion;large, finely chopped
2 tablespoons Olive oil or butter
2 each Garlic;cloves, minced
1 can Mushrooms;sliced;drained, 4oz
2 teaspoons Salt
1/2 teaspoon Nutmeg
1/2 teaspoon Oregano, leaf
1/2 package frozen Spinach; thawed and drained
3 tablespoons Flour
6 each Eggs, beaten
1/4 cup Milk, scalded
1/2 cup Cheddar cheese; sharp, 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 (About 2-1/2
quarts)