Begin by preheating your oven to 350°F (175°C). This allows the oven to reach the correct temperature while you're preparing the lasagna.
Cook 12 San Giorgio lasagna noodles as per package instructions till they're al dente. Drain and rinse under cold water to stop them from sticking together, then set aside.
Heat a large skillet over medium heat, add one pound of ground beef, chopped onion, and minced garlic. Cook until the meat is browned and crumbled into small pieces—around 8-10 minutes.
Once it's done cooking, drain off any excess fat from the skillet if needed then pour in your preferred pasta sauce (26 ounces) into the skillet with the meat mixture and stir well until combined.
In a separate mixing bowl, combine ricotta cheese (32 ounces), two beaten eggs, chopped parsley (one tablespoon), salt (half teaspoon), and black pepper (quarter teaspoon). Mix these ingredients together until it forms a smooth paste-like consistency.
Time to assemble! In a 9x13-inch baking dish, spread 1/3 of the meat sauce across the bottom. Top it with a layer of lasagna noodles (use about 4 noodles per layer). Follow this with a generous dollop of half your ricotta cheese mixture. Spread it out evenly over the noodles and sprinkle one cup shredded mozzarella cheese on top.
Repeat step 6 for another layer - add another third of meat sauce, followed by another layer of noodles, the remaining half of your ricotta mix, and another cup of mozzarella.
For the final layer, place down your last set of lasagna noodles and cover these with all remaining meat sauce. To finish off your masterpiece, distribute any leftover mozzarella cheese across this final meaty later, adding that extra cheesy touch with a sprinkling of grated Parmesan (half cup).
Once assembled, pop your soon-to-be-delicious Lasagna in preheated oven for roughly 30-35 minutes or until bubbling hot and golden brown on top.
After removing from oven allow it sit undisturbed for around 15 minutes before serving allowing those layers to settle just right - That's essential! Now slice up pieces and be ready