Lazy Lasagna Soup {crockpot}

Ingredients

• 24 oz jar marinara sauce
• 1 pound extra lean ground beef
• 4 cups reduced-sodium beef broth
• 1/2 cup ricotta cheese
• Salt and pepper
• 1 small onion
• 3 garlic cloves
• 14.5 oz can fire-roasted tomatoes
• 10 oz lasagna noodles
• Chopped parsley
• 1 cup part-skim mozzarella cheese
• 1/4 teaspoon red pepper flakes
• 1 tablespoon Italian seasoning
• Freshly grated parmesan cheese
• 1 large red pepper