Fried Tomato Parmesan

Name: Fried Tomato Parmesan
Ingredients: 3 large, firm green tomatoes, cored and sliced ½ thick; 1 egg, lightly beaten; ¼ cup milk; 2 cups Italian-seasoned breadcrumbs; ½ cup all-purpose flour; ½ cup grated Parmesan cheese; 1 Tablespoon unsalted butter; 2 Tablespoons extra-virgin olive oil; 3 cups good marinara sauce (I use Newman's Own); 6 thin slices mozzarella or provolone cheese (or 2 cups grated); ¼ cup grated Parmesan cheese; cooked spaghetti or other pasta, for serving