Prep your base: Cook rice, quinoa, or your preferred grain according to package directions. Fluff and keep warm. If using cauliflower rice, sauté with a little olive oil and salt until tender.
Season the chicken: Pat the chicken dry and season with 1 teaspoon salt and 1/2 teaspoon black pepper.
This helps browning and flavor.
Sear the chicken: Heat 1 tablespoon olive oil in a large skillet over medium-high. Add half the chicken in a single layer and cook 3–4 minutes per side until golden and just cooked through. Transfer to a plate.
Repeat with remaining oil and chicken.
Sauté aromatics: Reduce heat to medium. Add minced garlic and sun-dried tomatoes to the skillet. Cook 1 minute until fragrant.
Stir in tomato paste, Italian seasoning, and red pepper flakes; cook 30 seconds to caramelize.
Build the sauce: Pour in the chicken broth, scraping up browned bits. Simmer 2–3 minutes to reduce slightly.
Make it creamy: Lower heat to medium-low. Whisk the Greek yogurt in a small bowl to loosen, then slowly whisk into the skillet.
Stir in Parmesan until melted and smooth. Keep the heat gentle to avoid curdling.
Add greens and chicken: Stir in chopped spinach until wilted, 1–2 minutes. Return the chicken and any juices to the pan.
Simmer 2 minutes to thicken and coat.
Finish and balance: Stir in lemon juice and chopped basil. Taste and adjust with salt, pepper, or more lemon as needed.
Assemble bowls: Divide your grain or cauliflower rice into bowls. Spoon the creamy Tuscan chicken on top.
Garnish with extra basil, a sprinkle of Parmesan, and a drizzle of sun-dried tomato oil if you like.