Weeknight Chicken Cacciatore | America's Test Kitchen

Ingredients

• 4 (6- to 8-ounce) boneless, skinless chicken breasts , trimmed and halved crosswise
• Salt and pepper
• 3 tablespoons olive oil
• 1 pound portobello mushroom caps , gills removed, cups halved and sliced thin
• 1 pound onions , halved and sliced thin
• 1 red bell pepper , stemmed, seeded, and chopped
• 6 garlic cloves , minced
• 2 tablespoons tomato paste
• 2 teaspoons minced fresh rosemary
• 1/4 teaspoon red pepper flakes
• 1/2 cup dry red wine
• 1 (14.5-ounce) can diced tomatoes
• 3/4 cup low-sodium chicken broth