01 - 
                Heat olive oil in a large skillet over medium heat. Add ground beef and cook for approximately 7 minutes, breaking it up until no pink remains and juices start to caramelize.
              
              
              
                02 - 
                Add chopped onion and minced garlic to the skillet. Cook for 4 minutes until onions are softened and slightly golden and garlic is aromatic.
              
              
              
                03 - 
                Pour marinara sauce into the skillet. Stir and let the mixture simmer gently for 5 minutes until flavors meld and sauce thickens slightly, then remove from heat.
              
              
              
                04 - 
                In a bowl, combine ricotta, shredded mozzarella, half of the Parmesan, chopped basil, and oregano. Mix thoroughly until smooth and evenly blended.
              
              
              
                05 - 
                Spread a thin layer of meat sauce on the bottom of the crockpot to prevent sticking and build flavor.
              
              
              
                06 - 
                Arrange a single even layer of frozen ravioli over the meat sauce, covering the base completely.
              
              
              
                07 - 
                Spoon dollops of the ricotta cheese mixture over the ravioli and gently spread to cover.
              
              
              
                08 - 
                Continue layering alternating meat sauce, ravioli, and cheese mixture until all ingredients are used, finishing with a final layer of meat sauce.
              
              
              
                09 - 
                Sprinkle the remaining mozzarella and Parmesan cheese evenly over the final meat sauce layer to achieve a golden crust when cooked.
              
              
              
                10 - 
                Cover the crockpot, set heat to low, and cook for 5 hours until the ravioli are tender and cheese is melted and bubbling.
              
              
              
                11 - 
                Turn off crockpot and allow the dish to rest uncovered for 10 minutes to set for easier slicing.