Drop the beans gently into the pan, spreading it out. Use a rubber spatula to toss the beans around so the oil coats it. Let it cook for 2 minutes. (You will see a few brown blisters on the skin.) If pan gets too hot, lower heat to medium. Flip it with the spatula and let it cook for another 2 minutes. Season lightly with 1/4 tsp salt and 3 grinds of black pepper. Toss it again. Let cook for another 2 minutes. Mix in the garlic and 1/8 tsp (more or less) of red pepper flakes. Let it cook for another 30 seconds until garlic is fragrant and the beans are just crisp tender and color is still bright green. Adjust seasoning as needed. (Do not add too much salt as the cheese is already salty.)