A delightful twist on grilled vegetables, combining green beans, onions, and mushrooms with a sesame-infused marinade.
In a mixing bowl, combine the soy sauce, sesame oil, brown sugar, minced garlic, and red pepper flakes.
Mix the marinade thoroughly to ensure the sugar dissolves completely for an even flavor.
Add the green beans, red onion slices, and mushrooms to the bowl, tossing them to coat evenly with the marinade.
Let the vegetables sit in the marinade for a few minutes to absorb the flavors.
Place half of the marinated vegetables on a large piece of foil, folding and sealing the edges to create a packet. Repeat with the remaining vegetables.
Ensure the foil packets are sealed tightly to retain the steam during grilling.
Grill the packets over medium heat for 18-22 minutes, turning occasionally, until the vegetables are tender.
Turn the packets carefully to prevent tearing and ensure even cooking.
Carefully open the foil packets to release the steam and serve the vegetables warm.
Serve directly from the foil for a rustic presentation or transfer to a serving dish for a more formal setting.