Chicken is topped with a creamy, vegetable-filled peanut sauce to make a healthy, protein-packed comfort food meal for any night of the week.
Preheat oven to 350 degrees Fahrenheit.
Heat butter and olive oil in Dutch oven over medium-high heat. Season chicken breasts with salt and pepper and add them, in batches, to the pan, browning on both sides. Remove from pan and set aside to add back in later.
Add the onion to the warm pan and cook until translucent. Add tomatoes and spinach, stirring to combine. Add the chicken back to the pan.
Place reserved tomato liquid in a measuring cup and add chicken broth or tomato juice until combination measures 1 ½ cups. Add liquids to a medium mixing bowl with peanut butter and whisk until mixture is smooth. Add ½ teaspoon salt, ¼ teaspoon pepper, and cumin (if using) and whisk to combine. Pour sauce over chicken mixture in Dutch oven.
Place Dutch oven in 350 degree oven and cook for one hour, or until chicken is tender. When serving, garnish with ground peanuts.