Super Fast Smashed Cheese Burger

Name: Super Fast Smashed Cheese Burger
Prep time: 5 min
Cook time: 10 min
Total time: 15 min
Ingredients: 1 pound ground beef 85% lean (grass fed); 2 tablespoons lard (Fat Works Tallow); 4 slices Kerrygold Skellig cheddar cheese (or other sharp cheddar); 4 slices tomatoes; 8 slices avocado