Step 1

Tear 2 pieces of foil so they are 12x18 inches each.

Step 2

Stack the foil on top of each other.

Step 3

In a bowl, combine the soy sauce, garlic, sesame seeds, and sesame oil.

Step 4

Toss the green beans in 1 tablespoon of the sauce mixture.

Step 5

In a separate bowl or a resealable plastic bag, marinate the steak in the remaining sauce mixture for at least 30 minutes in the fridge.

Step 6

Preheat the grill to medium-high heat or safely begin a campfire.

Step 7

Place a layer of green beans in the center of the foil.

Step 8

Top the green beans with the marinated steak.

Step 9

Fold up the foil to create a packet with a tight seal.

Step 10

Place the sealed packet on the hot grill or over the fire, flipping once, until the steak is cooked to at least 135 degrees F internally, about 8 minutes.

Step 11

Remove the packet from the grill and pierce the packet with a knife or a fork to allow the steam to escape.

Step 12

Unfold the packet, garnish with cilantro, and serve.