Melt the butter in a pot over medium heat; After, the pot is heated, add the onions and let simmer until brown. Add the garlic, salt, pepper and pepper. Stir-fry for 3 minutes; add the pieces of chicken and bell peppers. Stir until the chicken becomes brown.
Crush the tomatoes and mix them into the pot, along with the water. Reduce the heat to low, cover, and let alone for 10 minutes.
Add a few tablespoons of broth from the pot to the peanut butter. Add half of the peanut butter to the pot; continue to stew until chicken is well done, it will probably take at least an hour.
Place the spinach into a pot. Cover and steam the spinach until it is tender. Drain the water and combine with remaining peanut butter. Serve the greens along with the dovi stew.