Lasagna Roll Ups | The Kitchn

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
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