Preheat your oven to 350°F (175°C) and lightly grease a 9×13 glass baking dish with oil.

Cook the spaghetti noodles according to the package instructions, then drain and return them to the pot.

While the noodles are still hot, add the cream cheese, Italian seasoning, and minced garlic to the pot. Mix everything thoroughly until the cream cheese is fully melted and coats the noodles.

In a skillet, heat the olive oil and brown the ground beef along with the diced green peppers and onions. Once the beef is fully cooked, drain any excess fat if necessary.

Add the spaghetti sauce to the skillet with the ground beef mixture and stir well to combine all the flavors.

Spread a small amount of the ground beef mixture in the bottom of the prepared baking dish to cover the surface.

Pour the spaghetti mixture over the ground beef layer, ensuring the noodles are evenly distributed.

Pour the remaining ground beef mixture on top of the noodles.

Sprinkle 57g (1/4 cup) of grated Parmesan cheese over the dish, followed by a generous layer of shredded mozzarella cheese.

Bake in the preheated oven for approximately 30 minutes, or until the dish is bubbly and the cheese is golden and melted to perfection.

Remove from the oven and sprinkle the remaining grated Parmesan cheese over the top. Garnish with freshly chopped basil for a burst of freshness.

Allow the dish to rest for about 10 minutes before serving. This will help the flavors meld together and make it easier to portion out.