Making Simple Chicken Breast with Onions and Tomatoes is straightforward. Follow these simple steps:

1. Prep the Chicken: Pat the chicken breasts dry with paper towels and season them with salt and black pepper on both sides.

2. Heat the Oil: In a large skillet, heat the olive oil over medium heat until hot.

3. Cook the Chicken: Add the chicken breasts to the skillet. Cook for about 7-8 minutes on each side, or until they are golden brown and cooked through (the internal temperature should reach 165°F or 75°C). Remove the chicken from the skillet and set aside.

4. Sauté the Onions: In the same skillet, add the sliced onions. Sauté them for about 5 minutes or until they become translucent and start to soften.

5. Add Tomatoes: Stir in the diced tomatoes and optional dried basil. Cook for another 3-4 minutes until the tomatoes start to break down and release their juices.

6. Combine Ingredients: Return the chicken to the skillet. Spoon the onion and tomato mixture over the chicken. Allow everything to simmer together for an additional 5 minutes, letting the flavors meld.

7. Serve: Remove from heat and serve hot. You can garnish with fresh basil or parsley if desired.

These steps make debuting your culinary skills a breeze while achieving a wonderfully tasty dish.