Add the oregano, basil, garlic powder, and onion powder to the ground meats. Using your hands, mix well and divide into six equal patties. Use a heart shaped cookie cutter to make heart shapes, if desired. Flatten the patties down so they are about half an inch thick and sprinkle the salt over both sides of the patties.
Heat the bacon grease in a 10 inch cast iron skillet over medium heat until it is shimmering. Add three patties and cook without moving for 6-8 minutes or until well browned on the bottom and cooked nearly through around the edges.
Flip the patties and cook for 3-4 minutes or until well browned and cooked to your desired doneness. Remove the cooked patties to a platter and cook the remaining patties the same way.