Preheat your oven to 400°F.
Finely chop the garlic, dice the zucchini and red bell pepper.
In a skillet, heat olive oil over medium heat. Add minced garlic and sauté until fragrant, about 1 minute.
Add the lean ground turkey to the skillet. Cook until browned, breaking it up with a spatula, about 5-7 minutes.
Stir in diced zucchini, red bell pepper, and Italian seasoning, cooking for an additional 3 minutes. Remove from heat.
In a baking dish, start layering by spreading a thin layer of tomato sauce on the bottom.
Place the whole wheat lasagna sheet over the sauce, then spread a layer of the turkey and veggie mixture on top.
Dollop the low-fat ricotta cheese evenly over the turkey mixture, and sprinkle with fresh spinach.
Finish with a drizzle of remaining tomato sauce on top.
Bake in the preheated oven for about 20 minutes until heated through and flavors meld.
Let cool for a few minutes before serving.