Heat olive oil in a large skillet over medium heat. Add ground meat and cook until browned. Drain excess fat if needed.
Stir in onion and cook for 2–3 minutes until softened. Add garlic and cook for 30 seconds.
Pour in marinara sauce and water (or broth). Stir to combine.
Add broken lasagna noodles and Italian seasoning. Season lightly with salt and pepper.
Bring to a gentle simmer, cover, and cook for 12–15 minutes, stirring occasionally, until noodles are tender.
Spoon ricotta over the top, then sprinkle with mozzarella and Parmesan.
Cover again and cook 3–5 minutes until cheese is melted.
Remove from heat and let rest for 5 minutes before serving. Garnish with fresh herbs if desired.