Grilled vegetables on the BBQ (Asian marinade) - Le Coup de Grâce

Ingredients

• 1 red bell pepper, cut in big pieces
• 1 orange bell pepper, cut in big pieces
• 1 yellow bell pepper, cut in big pieces
• 3 zucchinis, cut in 1 cm thick slices
• 1 big red onion, cut in big pieces
• 227g white mushrooms, cut in half
• 1/4 cup olive oil
• 1/4 cup soy sauce
• 1/2 teaspoon grilled sesame oil
• Salt and ground pepper
• BBQ wok