1. Heat olive oil in a saucepan over medium-high heat. Add onionand garlic and cook 2 to 4 minutes, mix in diced tomatoes, tomato paste,ketchup, sugar, oregano and salt. Bring to a boil. Reduce heat to lowand simmer 15 to 20 minutes or until flavors are blended, stirringfrequently
Method for Spaghetti
Bring a large pot of lightly salted water to a boil. Cook spaghetti inthe boiling water, stirring occasionally until cooked through but firmto the bite, about 12 minutes. Drain and transfer to a serving dish.Stir spaghetti sauce into pasta until coated; add pepperoni, olives, andmushrooms on top of spaghetti. Sprinkle with mozzarella cheese whilsthot.