Boil the lasagna noodles by following the directions on the box.
1 package lasagna noodles,
In a pan on medium heat, add 1 Tablespoon of extra virgin olive oil.
1 Tbsp extra virgin olive oil
Sauté 1 pound of ground beef for 3 minutes. Add ½ teaspoon of salt and pepper. Stir occasionally.
1 lb ground beef, salt,, pepper,
Chop ½ of an onion and add to the beef. Sauté for another minutes.
½ yellow onion,
Add in 3 ounces of chopped spinach, sauté for 2 minutes. Once done, set aside to cool.
3 oz fresh spinach,
Meanwhile in a separate bowl combine the ricotta, mozzarella cheeses, egg, as well as a pinch of salt and pepper. Stir well, then add to the skillet and combine with the beef and spinach.
1 cup ricotta, 1 cup mozzarella cheese,, 1 large egg, salt,, pepper,
Preheat the oven to 350F.
Prepare an oven safe dish for lasagna, by spreading ½ cup marinara sauce on the bottom.
2 cups marinara sauce
On each cooked lasagna noodle spread beef mixture.
Roll it up and place in an oven safe dish (you could also cut each roll in half).
Spread marinara sauce on top of the lasagna rolls. Sprinkle 1 cup of mozzarella cheese.
2 cups marinara sauce, 1 cup mozzarella cheese,
Cover with foil. Bake for 30 minutes.
Take off foil and bake for another 5 minutes. (I broil the last 2 minutes to get that darker color on top.)