Step 1

Add the ground beef, onion, and garlic to a skillet. Brown for 5-7 minutes, breaking up the meat as it cooks. You can also do this directly in the slow cooker if you have a saute feature. Season with salt and pepper.

Step 2

Add this to the slow cooker along with the crushed tomatoes, marinara sauce, chicken broth, and Italian seasoning. Cook on low for 4 hours (you can cook it up to 8 hours as well).

Step 3

Open the slow cooker and add the noodles, zucchini, and spinach. Cook for 25-30 minutes until the lasagna noodles are tender.

Step 4

Stir in the Parmesan cheese and season with salt and pepper as needed.