In a large skillet set over medium heat, add the ground beef (or turkey). Cook, breaking it apart with a spatula, together with the chopped onion and minced garlic, until the meat is browned and no longer pink, about 8 minutes. Drain any excess fat to keep the dish lighter.
Stir in the marinara sauce, water (or broth), dried oregano, and dried basil, mixing well. Increase the heat slightly until the mixture comes to a gentle boil.
Once the sauce is bubbling nicely, add the mini lasagna noodles and stir until they are fully submerged in the sauce.
Lower the heat to simmer, cover the skillet with a lid, and allow it to cook for approximately 15 minutes, stirring occasionally to prevent sticking, until the noodles reach al dente texture.
Remove the skillet from the heat. Using a spoon, dollop ricotta cheese evenly over the top of the noodle mixture. Then, generously sprinkle shredded mozzarella cheese on top of the ricotta.
Replace the lid and let the skillet rest for about 5 minutes, which will allow the mozzarella to melt perfectly.
Season to taste with salt and freshly cracked black pepper before serving to enhance the flavors.
Garnish each serving with torn fresh basil leaves to add a burst of color and aroma.