Finely dice the onion into 1/4-inch pieces, mince the garlic cloves, stem and chop the kale into 1-inch ribbons, shred the mozzarella cheese from a block, and chop the parsley—set all aside. Start boiling salted water in a large pot and cook the penne pasta 4 minutes less than the package directions to keep it slightly firm (it will finish cooking in the oven). When done, reserve 1 cup of pasta water, then drain and set the pasta aside. I like to reserve the pasta water in a separate measuring cup so I can add it precisely to the sauce—this starch helps create a cohesive, creamy texture in the final dish.

Heat your oven to 350°F and lightly coat a 9x13 inch baking dish (or similar size) with cooking spray. In a large skillet, heat the olive oil over medium heat and add the diced onion and minced garlic. Sauté for 2-3 minutes until the onion becomes translucent and fragrant. Add the oregano, rosemary, basil, red pepper flakes, salt, and black pepper, cooking for just 30 seconds to toast the spices and release their essential oils—this step is crucial for building deep flavor rather than just adding dried herbs.

Add the ground turkey to the skillet and cook for 5-7 minutes, breaking it up with a wooden spoon as it cooks, until it's fully cooked through and begins to brown lightly. The browning creates deeper, more savory flavors through the Maillard reaction. Once cooked, pour in the tomato sauce, honey, and balsamic vinegar, stirring to combine. Bring the mixture to a boil, then reduce heat and simmer for 2 minutes to marry the flavors.

Add the reserved 1 cup of pasta water to the sauce, stirring well to create a cohesive, slightly loose mixture. Fold in the kale and the cooked pasta from Step 1, gently stirring until everything is evenly coated with the sauce. The residual heat will begin to wilt the kale slightly, and the pasta will absorb some of the sauce. I prefer to use freshly grated mozzarella rather than pre-shredded cheese for a much smoother, creamier melt without any weird additives.

Spread half of the pasta mixture from Step 4 into the prepared 9x13 inch baking dish, then top with 1 cup of the shredded mozzarella cheese. Add the remaining pasta mixture and top with the final 1 cup of mozzarella cheese. Cover the dish with foil and bake at 350°F for 20 minutes until the cheese melts and the edges are gently bubbling.

Remove the baking dish from the oven and let it rest for 10 minutes before serving. This resting time allows the dish to set slightly, making it easier to portion and serving, while the residual heat continues to cook the pasta gently. Top with the fresh chopped parsley just before serving to add brightness and freshness that cuts through the richness of the cheese and sauce.