Ingredients
The following ingredients have 5 Servings
- 2 cups canned imported Italian tomatoes, cut up, with their juice
- 5 tablespoons butter
- 1 medium onion, peeled and halved
- Salt to taste
- Olive oil
- 1 small onion, finely chopped
- 2 cloves garlic, finely chopped
- 1 pound ground chuck
- 1 pound ground veal
- 1/4 cup dry breadcrumbs
- 1 teaspoon Dijon mustard
- 2 teaspoons Worcestershire sauce
- 1/4 cup finely grated Parmesan, plus more for showering sandwich
- 2 tablespoons mayonnaise
- 1 large egg, lightly beaten
- 4 to 6 sandwich rolls, buns, or subs
- Mozzarella, for topping
