Polenta Grits With Cilantro & Tomato Sauce

• 2 garlic clove
• 1 tomato (fresh)
• 1 green onion
• 550 ml water
• 100 gr corn grits (yellow)
• 60 gr onion
• 34 gr cilantro (fresh)
• 5 ml olive oil
• 1 gr salt
• 1 gr chili powder