CHEESY FLAVORFUL FRENCH ONION SOUP CASSEROLE
INGREDIENTS:
- 4 large white or yellow onions, thinly sliced
- 1/4 cup butter, divided
- 3 tablespoons all-purpose flour
- 1/2 teaspoon salt
- 1/4 teaspoon pepper
- 1 can (10-1/2 ounces) condensed beef consomme, undiluted
- 1/4 cup sherry, optional
- 4 slices French bread (1 inch thick)
- 1 cup (4 ounces) shredded Swiss cheese
- 1/4 cup shredded Parmesan cheese