Heat olive oil in a pan and add finely diced garlic and onions and fry lightly. Don`t let it get dark. If necessary, always add a small dash of water to steam it through. Add brunch, add 1 teaspoon of tomato paste and, if necessary, a dash of milk. Season with salt and pepper. Add halved tomatoes to the brunch sauce.
Stir in the spaghetti and serve sprinkled with basil and parmesan.