01 -
Preheat oven to 190°C (375°F).
02 -
In a medium saucepan, brown the ground beef until no longer pink, about 5-7 minutes. Add diced onion, 1 tablespoon dried oregano, salt, and pepper. Cook for an additional 5 minutes until onion is soft and translucent.
03 -
Pour marinara sauce and water into the meat mixture. Stir to combine, bring to a boil, then remove from heat. Total cooking time should be about 10 minutes.
04 -
In a separate bowl, combine ricotta cheese, remaining tablespoon of dried oregano, eggs, Parmesan cheese, salt, and pepper. Mix until well blended.
05 -
In a 23x33cm (9x13 inch) baking dish, spread a layer of meat sauce. Place three lasagna noodles over the sauce, then spread some of the cheese mixture and sprinkle with mozzarella. Repeat these layers until all noodles are used, finishing with cheese mixture and mozzarella on top.
06 -
Place assembled lasagna in the preheated oven and bake for approximately 60 minutes, or until noodles are tender when tested with a fork.
07 -
Remove from oven and let rest for 15 minutes before slicing and serving. This resting period allows for easier cutting and serving.