Preheat your oven to 375°F. While it heats, mince the garlic, grate the parmesan, shred the mozzarella, and thoroughly squeeze the spinach dry—this is crucial to prevent a watery lasagna. Chop your fresh parsley for garnish and set everything aside in small bowls or on a prep area. This organization will keep the cooking process smooth and efficient.

Bring a large pot of salted water to a boil and add the lasagna noodles. Cook them 2 minutes less than the package directions to ensure they remain al dente—they'll continue to soften slightly during baking and won't become mushy. Drain well and toss lightly with a small amount of oil to prevent sticking. Set aside on a clean surface.

In a large skillet over medium-high heat, brown the ground beef, breaking it apart as it cooks until no pink remains. Add the minced garlic from Step 1, oregano, salt, and pepper, stirring for about 1 minute until fragrant. Pour in the spaghetti sauce and red pepper flakes, stir to combine, and simmer for 2-3 minutes to let the flavors meld. I always use a high-quality marinara like Rao's because it has the right consistency and won't water down the lasagna.

In a medium bowl, combine the cottage cheese, eggs, squeezed spinach from Step 1, half the shredded mozzarella, half the grated parmesan, salt, and pepper. Mix gently but thoroughly until evenly incorporated. The egg acts as a binder to hold the filling together as it bakes.

Spread approximately 1 cup of the meat sauce from Step 3 evenly across the bottom of a 9x13 inch baking dish. Layer 3 noodles from Step 2 over the sauce, then spread about 1/3 of the cottage cheese filling from Step 4, followed by about 1/2 cup of the meat sauce. Repeat this layering (noodles, filling, sauce) two more times. Top with the final 3 noodles, the remaining meat sauce, and finish with the remaining shredded mozzarella and grated parmesan sprinkled evenly over the top. I like to reserve a little extra parmesan to add after baking for a fresh, sharp finish.

Cover the baking dish tightly with foil and place it in the preheated 375°F oven. Bake for 30 minutes covered to allow the noodles to soften and the filling to set. Remove the foil and bake for an additional 5 minutes to lightly brown the top cheeses. Remove from the oven and let the lasagna rest for 10 minutes before cutting—this allows the layers to set and makes serving much cleaner.

After the 10-minute rest, cut the lasagna into portions and serve warm. Garnish each serving with fresh chopped parsley and extra grated parmesan if desired.