Slice the chicken into strips, the add into a bowl with the garlic powder, salt, and pepper. Toss to coat the chicken.
1 pound boneless skinless chicken, 1 teaspoon garlic powder, ½ teaspoon salt, ¼ teaspoon black pepper
Heat the olive oil in a large skillet over medium-high heat. Add the chicken to the skillet and cook about 4 minutes on each side until golden and cooked through.
1 tablespoon olive oil
Mix in the diced tomatoes (with their juices), Italian seasoning, and onion powder. Simmer for 3-4 minutes.
14.5 ounces diced tomatoes, ½ teaspoon Italian seasoning, ¼ teaspoon onion powder
Stir in the heavy cream and Parmesan cheese until smooth. Simmer for another 2-3 minutes until the sauce thickens slightly.
½ cup heavy cream, ¼ cup Parmesan cheese
Add the baby spinach and stir until wilted, about 1 minutes.
2 cups baby spinach
Serve over pasta, rice, or alongside warm, crusty bread.
Notes
Prep Tips:
If desired, you can use frozen spinach. Just thaw and drain it well before adding.
You can replace the heavy cream with half-and-half or even a dairy-free alternative, but note the sauce may be thinner.
If the sauce is too thin, mix 1 teaspoon of cornstarch with 2 teaspoons of cold water, then stir it into the skillet and simmer for 1-2 minutes until thickened.
Variation Suggestions:
Swap the chicken for shrimp or tofu for a different protein.
Add sautéed mushrooms, bell peppers, or zucchini for extra veggies.
Use canned fire-roasted tomatoes for a smoky twist.
Try using sun-dried tomatoes along with diced tomatoes for added richness.
Additional Serving Suggestions:
Serve over mashed potatoes or alongside a baked potato.
Pair with a crisp green salad or roasted vegetables for a full meal.
Garnish with fresh basil, parsley, or extra Parmesan before serving.
Storage Info For Leftovers:
Store in an airtight container in the refrigerator for up to 4 days.
Reheat in a skillet over low heat or microwave gently, adding a splash of cream or milk if needed.
Freeze in a freezer-safe container for up to 2 months. Thaw in the refrigerator before reheating.