STEP 2/5
Pour olive oil on a pan heated over high heat, put onions, mushrooms, bell peppers, and paprika in order, sprinkle salt and pepper, and quickly stir-fry them until they are half-cooked.
STEP 4/5
Pour olive oil on a pan, stir-fry minced garlic and chopped onions over low heat, and when it turns golden brown, add the rest of the sauce ingredients and boil over medium heat.