Cook the turkey, add the tomato sauce and simmer until it thickens a bit, about 3-5 minutes.
Spread the cottage cheese over the bottom of a baking dish, followed by the sauce and finally the mozzarella.
Bake in a preheated 350F oven until the top is a light golden brown and the sides are bubbling, about 15-20 minutes.
Heat the oil in a pan over medium heat, add the onion and cook until tender, about 5-7 minutes.
Add the garlic, red pepper flakes, and fennel and cook until fragrant, about a minute.
Add the tomatoes, tomato paste, Italian seasoning, bay leaf, paprika, balsamic vinegar, salt and pepper, bring to a boil, reduce the heat, simmer until until it thickens, about 5 minutes, and then mix in the basil and remove from heat.