In a skillet over medium heat, pour in the olive oil and saute the onions and garlic for 5 minutes. Add in the ground beef, break it up, and cook until it is browned.
Add the marinara sauce into the skillet with the beef along with half of the Italian herbs, salt, and pepper; stir it all together, then turn down the heat and let it simmer for 15-20 minutes while you prepare the rest of the ingredients.
Preheat the oven to 375°F. In a bowl, mix the cream cheese, half the mozzarella, the parmesan, parsley, a little salt and pepper, and the rest of the Italian herbs.
Spread the cooked lasagna sheets into a baking tray; divide the cream cheese mix and spread it onto each lasagna sheet. Roll them all up.
Spread half the beef mixture onto the bottom of a casserole dish then arrange the roll-ups on top of the meat sauce.
Spread on the rest of the meat sauce, then sprinkle on the rest of the mozzarella. Cover with foil and place in the oven to bake for 30 minutes to cook. Then, in the last 5 minutes, remove the foil and broil for 5 minutes to make the top golden brown.