Pat your chicken breasts dry with paper towels, then season both sides with salt, black pepper, and smoked paprika. This step takes literally 2 minutes and makes a real difference in browning. I always do this while my skillet preheats over medium-high heat.
Pour olive oil into a 12-inch skillet and wait until it shimmers—about 1 minute. Sear the chicken 5 to 6 minutes per side until golden and cooked through to 165°F internally. Don't move it around (I know it's tempting) because it needs that crust to develop.
Transfer the cooked chicken to a cutting board and slice it into strips. This makes your chicken peach skillet family summer way easier to eat and helps everything combine better when it goes back in the pan.
In the same skillet, add minced garlic and sauté for about 30 seconds until fragrant. Add sliced peaches, cherry tomatoes, and red onion, cooking for 3 to 4 minutes. You want the peaches to soften slightly but not turn to mush (I learned that the hard way).
Return the sliced chicken to the skillet and toss everything together gently. Drizzle with fresh lemon juice and scatter cilantro over the top. Taste and adjust salt as needed—sometimes the peaches add enough sweetness that you'll want less salt than you think.