Prep the chicken: Slice chicken breasts horizontally to make even cutlets. Pat dry.
Season both sides with 1 teaspoon salt, 1/2 teaspoon black pepper, and 1/2 teaspoon smoked paprika.
Quick sear: Heat 1 tablespoon olive oil in a large skillet over medium-high. Sear chicken 3–4 minutes per side until golden and just cooked through (165°F). Transfer to a plate and tent with foil.
Sauté aromatics: Lower heat to medium.
Add another teaspoon of oil if needed. Stir in garlic for 30 seconds until fragrant. Add chopped sun-dried tomatoes and a pinch of red pepper flakes; cook 1 minute.
Deglaze: Pour in chicken broth.
Scrape browned bits from the pan—they’re flavor. Simmer 2–3 minutes to reduce slightly.
Create the cream base: Whisk in half-and-half and Parmesan. If you prefer a thicker sauce, whisk 1–2 teaspoons cornstarch with a splash of cold broth and stir it in.
Simmer 1–2 minutes.
Temper the yogurt: In a small bowl, whisk Greek yogurt with a few spoonfuls of hot sauce from the pan to warm it. Then stir the tempered yogurt into the skillet. This prevents curdling and keeps the sauce silky.
Finish the sauce: Add lemon zest and a squeeze of lemon juice.
Taste and adjust salt and pepper. The sauce should be creamy, slightly tangy, and balanced.
Nestle the chicken: Return chicken and any juices to the pan. Spoon sauce over the cutlets and simmer on low for 2 minutes to rewarm and marry flavors.
Herb it up: Turn off heat.
Stir in sliced basil. Garnish with extra basil and a light dusting of Parmesan if you like.
Serve: Plate with your favorite base—whole-wheat pasta, zucchini noodles, cauliflower rice, or creamy mashed potatoes. Spoon plenty of sauce over the top.