Creating Simple Chicken Breast with Onions and Tomatoes is straightforward. Follow these steps to enjoy a delightful meal:

1. Prepare the Ingredients: Slice the onion and halve the cherry tomatoes. Season the chicken breasts with salt and pepper on both sides.
2. Heat the Oil: In a large skillet, heat the olive oil over medium heat.
3. Cook the Chicken: Add the chicken breasts to the skillet. Cook for about 6-7 minutes on each side, until they are golden brown and fully cooked through.
4. Add Onions: Once the chicken is cooked, remove it from the skillet and set aside. In the same skillet, add the sliced onions. Sauté for about 3-4 minutes or until they become translucent.
5. Incorporate Tomatoes: Add the halved cherry tomatoes to the skillet. Cook for another 3-5 minutes, stirring occasionally, until the tomatoes start to soften.
6. Combine Ingredients: Return the chicken breasts back to the skillet. Stir to coat the chicken with the onion and tomato mixture. Cook for an additional 2-3 minutes to heat through.
7. Serve: Remove from heat and adjust seasoning if needed. Serve hot, garnished with fresh herbs if desired.

This simple yet flavorful dish is now ready to enjoy!