Recipe: Weeknight Skillet Lasagna

Name: Recipe: Weeknight Skillet Lasagna
Ingredients: 1 tablespoon olive oil; 1/2 medium yellow onion, diced; 8 ounces uncooked Italian sausage, casings removed; 8 ounces white or cremini mushrooms, sliced; 1 (24- to 26-ounce) jar marinara sauce (about 3 cups); 1 1/2 cups low-sodium chicken broth; 8 ounces dry lasagna noodles (about 10); 1 cup cottage cheese (about 8 ounces), at room temperature; Salt; 1 cup shredded mozzarella cheese; 1/4 cup grated Parmesan cheese; Coarsely chopped parsley, for garnish (optional)