Preheat your oven to 375°F and lightly grease a small individual-sized baking dish.
In a non-stick skillet over medium heat, brown the ground turkey until fully cooked and no longer pink.
Stir the tomato puree, dried oregano, garlic powder, sea salt, and black pepper into the turkey and simmer for 5 minutes.
Finely chop the fresh baby spinach and stir it into the part-skim ricotta cheese in a small mixing bowl.
Boil the whole wheat lasagna noodles in a pot of water until al dente, then drain and cut into pieces that fit your baking dish.
Spread a spoonful of the turkey sauce on the bottom of the dish, followed by a layer of noodles.
Spread half of the ricotta-spinach mixture over the noodles, then add another layer of meat sauce.
Repeat the layers until all ingredients are used, finishing with a layer of meat sauce on top.
Sprinkle the shredded mozzarella and grated parmesan evenly over the top.
Bake for 20 minutes until the cheese is golden, bubbly, and the edges are slightly crisp.