Heat 1 tablespoon olive oil in large nonstick skillet over medium-high heat. Sprinkle both sides of chicken with 1 teaspoon Mrs. Dash® Extra Spicy Seasoning Blend. Cook 6 minutes, turning once. Remove from skillet and keep warm.
Heat remaining 2 tablespoons olive oil in same skillet over medium heat. Add onion, pepper and garlic, and cook 2 minutes or until softened. Stir in flour and cook 2 minutes, stirring constantly.
Add broth, tomatoes and remaining 1 teaspoon Mrs. Dash® and bring to a boil. Return chicken to skillet, reduce heat to medium-low, and cook, covered, 10 minutes or until chicken is done. Serve over rice.