10 oz. frozen spinach or equivalent
8 oz. grated Gruyere cheese
1 oz. dry bread crumbs
6 eggs
3 oz. grated onion
1 tsp. mustard (Guldens or Poupon)
1/2 tsp. salt
Thaw and drain spinach. Chop it finely.
Grate cheese and onion in a food processor. If you are using whole bread, grate that also.
Add eggs and seasonings to spinach. Add this mixture to the crumbs and cheese.
Preheat oven to 350F. Place the quiche mixture in an 8-inch buttered pie plate, or 8-inch square pan. Bake 30 minutes or until a knife inserted near the center comes out clean.
Serve hot or cold. Optional toppings include sour cream or fresh tomato salsa.
Note: This cuts very well at room temperature and makes a nice appetizer when cut in small squares.