Lasagna Roll Ups

Name: Lasagna Roll Ups
Ingredients: Cooking spray; 1 medium yellow onion; 2 cloves garlic; 8 ounces low-moisture mozzarella cheese; 2 ounces Parmesan cheese; 12 dried lasagna noodles (not no-boil, about 2/3 of a 1-pound box); 1 tablespoon olive oil; 1 1/2 teaspoons kosher salt, divided, plus more for cooking noodles; 1 teaspoon dried Italian seasoning; 1/2 teaspoon freshly ground black pepper; 12 ounces lean ground beef; 1 (24- to 32-ounce) jar marinara sauce, such as Rao’s; 1 (15- to 16-ounce) container whole-milk ricotta cheese; 1 large egg