Slice stew meat into bite-sized pieces.

In a bowl, mix together oil, sugar, garlic, soy sauce, white wine, and ginger.

Add the stew meat to the marinade and let it sit for at least 15 minutes.

Heat a large skillet or wok over medium-high heat.

Add the marinated beef to the skillet and cook until browned on all sides.

Add sliced green peppers and mushrooms to the skillet and cook until tender-crisp.

In a small bowl, mix cornstarch with a little cold water to create a slurry.

Pour the cornstarch slurry into the skillet and stir until the sauce thickens.

Serve the teriyaki beef over chow mein noodles.