Preheat oven to 375°F. Lightly grease a 9x13-inch baking dish.
Make the meat sauce:
Heat olive oil in a skillet over medium. Add chopped onion and cook until softened. Add ground chuck and cook until browned. Stir in garlic, garlic powder, red pepper flakes, salt, and pepper. Cook for 1 minute more, then pour in the marinara sauce. Simmer on low while prepping the rest.
Mix the ricotta filling:
In a bowl, stir together the ricotta, parsley, a pinch of salt and pepper, and 2 tbsp parmesan. Set aside.
Layer the lasagna:
Spoon a bit of meat sauce into the bottom of your baking dish.
Add a layer of frozen ravioli.
Dollop half the ricotta mixture on top.
Sprinkle with half the mozzarella and a couple tablespoons of parmesan.
Repeat the layers: sauce → ravioli → ricotta → cheese.
Finish with a final layer of sauce and the rest of your mozzarella and parmesan.
Cover with foil and bake for 30 minutes.
Uncover and bake another 10–15 minutes, until the top is golden and bubbly.
Let rest 10 minutes before slicing and serving. Garnish with extra parsley if you like!