Heat 1 Tbsp. of the oil in large skillet over medium-high heat and cook chicken thighs 4 minutes, turning once, until browned. Remove and set aside. Add water and mole sauce to skillet, whisk to completely combine. Bring to simmer; return chicken to sauce, cover and continue simmering for 6 minutes or until chicken is thoroughly cooked.
Meanwhile, heat remaining 1 Tbsp. oil in another large skillet over medium-high heat and cook peppers and onions with Knorr Selects Bouillon, stirring occasionally, 4 minutes. Add tomatoes and cook another minute.
Serve chicken in mole sauce with sautéed vegetables. For an authentic touch, garnish if desired with a sprinkle of sesame seeds.