Preheat your oven to 400°F for roasting vegetables if you prefer a roasted texture, or you may sear them in a skillet.
Chop the red bell pepper, zucchini, and red onion into bite-sized pieces.
If roasting, toss the chopped vegetables lightly with olive oil, salt, and pepper, and spread them out on a baking sheet. Roast for about 15-20 minutes until tender and slightly caramelized. Alternatively, heat olive oil in a skillet over medium heat and sauté the vegetables until soft.
In a separate skillet over medium heat, add the ground turkey and cook until browned and fully cooked through, breaking it apart as it cooks.
Once the vegetables are cooked, add them to the skillet with the ground turkey.
Pour in the egg whites across the mixture and let them set, gently stirring to combine and create a cohesive, protein-rich scramble.
Shortly before the egg whites finish cooking, stir in the fresh spinach until just wilted.
Season with salt, pepper, and any additional herbs to taste. Serve warm and enjoy your savory, nutrient-packed skillet meal.