Basic Tomato Sauce for Pasta

Ingredients

• 1-1/2 tablespoon olive oil
• 1 onion, finely chopped
• 3 cloves of garlic, crushed
• 1 can tomatoes, chopped
• 2 tablespoons of tomato puree, or ketchup
• 2 tablespoons of oregano or mixed herbs
• 1 cup of vegetable stock, or wine for a richer sauce
• Salt and freshly ground pepper to taste