Paleo Chicken Puttanesca

Ingredients

• 4-5 boneless chicken breasts
• 1 tablespoon olive oil
• 1 cup onion - halved and sliced 
• 3 cloves garlic - rough chopped
• 1 14 oz can crushed tomatoes
• 1 cup cherry tomatoes
• 1/2 cup pitted kalamata olives
• 1/4 cup fresh basil - chopped plus a handful for garnish if desired
• salt and pepper to taste

1. Heat olive oil in large skillet.
2. Rinse and pat dry chicken. Sprinkle with salt and pepper.
3. Brown chicken on both sides - about 3-4 minutes. Remove from pan and set aside. (it won't be completely cooked. You will finish cooking with sauce).
4. Saute onion until translucent.
5. Add garlic and cook for one minute.
6. Add crushed tomatoes and basil. Season with salt and pepper to taste.
7. Nestle chicken breasts on top of sauce.
8. Spread cherry tomatoes and olives on top.
9. Simmer uncovered for about 20 minutes or until chicken is cooked through.
10. Top with additional basil for garnish

From: http://laughingspatula.com/30-minute-chicken-puttanesca/