Vegetable Stir-fry with Garlic-Miso Sauce

3 tbsp. vegetable oil
6 large garlic cloves (or one small head of green garlic), coarsely chopped
1 tbsp. yellow miso
1 tsp. oyster sauce
1/2 tsp. sugar
1 lb. assorted vegetables (such as broccoli, green beans, cauliflower, eggplant, mushrooms, bell peppers, zucchini -- be creative!)
1 jalapeno chili, seeded, thinly sliced

Heat oil in heavy large skillet over high heat. Add garlic and saute a minute or two until it just starts to turn golden. Add miso, oyster sauce and sugar and stir to blend. Add veggies & jalapeno and saute until vegetables are crisp-tender, about 12 minutes. Serve with steamed rice.