1/4 cup sour cream
2 tablespoons chopped onion
1/2 teaspoon dried oregano
1/4 teaspoon seasoned salt
8 slices Italian or other white bread
8 bacon strips, halved and cooked
8 slices tomato
4 slices mozzarella cheese
2 to 3 tablespoons butter or margarine
Combine sour cream, onion, oregano and seasoned salt; spread on four slices of the bread. Top each with four bacon pieces, two tomato slices and a slice of cheese; top with remaining bread.
In a skillet over medium heat, melt 2 tablespoons butter. Cook sandwiches on both sides until bread is lightly browned and cheese is melted, adding more butter if necessary.