I could never get enough of this meal whenever my mother prepared it

1. Turn the oven up to 450 degrees.
2. Place the bacon on a rimmed baking sheet on a wire rack. Bake till crisp, 15 minutes or so.
3. Take out of the oven and place the bacon aside. Sort the fat with care.
4. Combine the beans, onion, pepper, and salt. Pour in around three to four tablespoons of the lard, then thoroughly mix.
5. Spread out the beans on a baking sheet in an equal layer. To make sure they are cooked evenly, roast for 20 minutes, stirring once.
6. In the last minute of cooking, chop the bacon and sprinkle it over the green beans to reheat them.