01 - Heat olive oil in a large skillet over medium heat. Add ground turkey, season with salt and pepper, and break up with a spoon. Cook until browned and fully cooked, about 5 to 6 minutes. Transfer to a plate and set aside.
02 - In the same skillet, add diced onion and red bell pepper. Sauté for 3 to 4 minutes until softened. Add minced garlic and cook for 1 minute until fragrant.
03 - Stir in chopped zucchini and halved cherry tomatoes. Cook for 4 to 5 minutes until vegetables are tender but still hold their shape.
04 - Return the browned turkey to the skillet. Add Italian herb mix, smoked paprika, and crushed red pepper flakes if using. Stir thoroughly to combine.
05 - Add baby spinach and cook, stirring constantly, until wilted, about 1 minute.
06 - Taste the mixture and season with additional salt and black pepper as needed.
07 - Remove from heat, garnish with chopped fresh parsley, and sprinkle grated Parmesan cheese if desired. Serve immediately.