Making Irresistible Tomato Lasagna is straightforward if you follow these steps:

1. Preheat the Oven: Preheat your oven to 375°F (190°C).
2. Cook the Lasagna Noodles: Boil the lasagna noodles according to the package instructions until al dente. Drain and set aside.
3. Prepare the Sauce: In a large skillet, heat olive oil over medium heat. Add the chopped onion and sauté until translucent, about 5 minutes.
4. Add Garlic and Spices: Stir in minced garlic, dried oregano, and dried basil; cook for another minute. Pour in the crushed tomatoes and simmer for 10-15 minutes. Season with salt and pepper.
5. Mix the Cheese Filling: In a bowl, combine ricotta cheese, mozzarella cheese (reserve some for topping), Parmesan cheese, and the egg. Mix well until combined.
6. Assemble the Lasagna: In a 9×13-inch baking dish, spread a layer of tomato sauce on the bottom. Place 4 lasagna noodles over the sauce. Spread one-third of the cheese mixture over the noodles, followed by another layer of sauce.
7. Repeat the Layers: Repeat the layering process two more times, finishing with noodles and sauce. Top with the reserved mozzarella cheese.
8. Bake: Cover with aluminum foil and bake in the preheated oven for 25 minutes. Remove the foil and bake for another 15-20 minutes, or until the cheese is golden and bubbly.
9. Cool: Allow the lasagna to cool for 15 minutes before slicing. This helps the layers set.
10. Garnish: Serve with fresh basil leaves if desired.

By following these steps, you can create a mouthwatering lasagna that everyone will love!