Preheat the oven to 400°F/ 200°C. Lightly grease the baking dish.
Cook pasta: Bring a large pot of water to a rolling boil. Add salt generously. Break the spaghetti in half and cook it according to the package instructions. Drain well, and place in a large bowl.13 oz spaghetti
Mix crust ingredients: Mix spaghetti with sour cream, lightly beaten eggs, grated mozzarella and Parmesan, salt, and pepper.⅓ cup sour cream + 2 large eggs + 1 mozzarella ball + ½ cup Parmesan + ½ teaspoon fine sea salt + ½ teaspoon ground black pepper
Bake spaghetti crust: Press the mixture into the lightly greased baking dish. Bake for 8 to 10 minutes until the crust is firm and lightly golden.
Top the pizza:
Sauce: In a small bowl, combine the marinara, tomato paste, grated garlic, oregano, red pepper flakes, salt, and pepper. Spread the sauce evenly over the spaghetti crust.1 ¼ cups marinara sauce + 3 tablespoons tomato paste + 2 garlic cloves + 1 teaspoon oregano + ¼ teaspoon red pepper flakes + ½ teaspoon fine sea salt + ½ teaspoon ground black pepper
Top pizza: Sprinkle the grated cheese on top, then arrange the salami slices (or your preferred toppings) over the cheese.1 cup grated cheese + 16 small salami slices
Bake spaghetti pizza for about 20 minutes, or until the cheese is melted and golden. Rest for about 5 minutes before slicing. Garnish with basil if desired. Serve immediately.
Notes
Baking dish: I baked my spaghetti pizza in a ceramic quiche dish, but you can also use a round pie dish, a small casserole dish, or even a nonstick or cast-iron skillet.
Pasta: I usually go with spaghetti, but other long pasta like linguine, fettuccine, or bucatini works just as well.
Sauce: I used marinara this time, but I often use a classic pizza sauce or tomato sauce with added seasoning. If all you have are regular canned tomatoes, if fine; just mix them with the tomato paste, 2 cloves of grated garlic, 1 teaspoon of oregano, red pepper flakes, salt, and pepper to taste.
Cheese: Gouda or Cheddar are great, but any good-melting cheese you like will work perfectly.
Toppings: Instead of salami, try pepperoni, chopped bacon or pancetta, ham, cooked sausage, or leftover chicken. For veggies, bell peppers, mushrooms, olives, corn, or anything you love on pizza works perfectly.