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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