Start by heating a skillet on medium heat. Add the ground beef and cook until it turns brown, breaking it up as it cooks.

Once the beef is cooked, drain any fat in the skillet.

To the browned beef, add the pasta sauce, garlic powder, and Italian seasoning. Stir well and let it simmer for about 5 minutes.

Grease your slow cooker with a little oil or cooking spray to prevent sticking.

Pour a thin layer of meat sauce into the bottom of the greased slow cooker.

Place half of the frozen cheese ravioli over the meat sauce.

Pour half of the remaining meat sauce over the ravioli and sprinkle half of the mozzarella and cheddar cheeses on top.

Repeat the layers with the remaining ravioli, meat sauce, and cheeses, ending with a layer of cheese on top.

Cover the slow cooker and cook on low for 4-5 hours until heated through and cheese is melted.

Serve hot. Optionally garnish with additional Parmesan cheese or fresh herbs.