Place your bacon fat in your pan and once melted add your sweet potatoes and your pinch of sage
Saute for 8-10 minutes stirring often as to not burn your sweet potatoes until they are at the consistency you desire
Remove from the heat and set aside
Wash and slice your roma tomato
Cut your avocado in half, remove the pit, peel the skin off and slice
Wash your baby spinach and set aside
Burgers
Preheat your grill on high heat
Ensure your ground beef has been at room temperature for a minimum of 30 minutes
Place your ground beef, salt and pepper, and half your lemon juice in a mixing bowl and combine everything with your hands
Divide the meat in half and form two even-sized 3/4 inch patties ensuring you depress the center of your burgers with your thumb making a well
Place your burgers on your preheated grill and cook covered for 3 minutes
After 3 minutes, flip your burgers and cook for another 2 minutes covered
Open the lid and top with your goat cheese and leave your burgers until your cheese is melted and remove from the grill
If you have a meat thermometer, you can use it to cook your burgers to the doneness you desire since grills have different temperatures and burger thickness will vary
Assembly
Place 1 cup of spinach on each plate
Top with a burger on each bed of spinach
Add your avocado and then garnish each burger with your sauteed sweet potatoes and put your tomatoes on the side
Use your remaining lemon juice and sprinkle over everything if you'd like