In a large bowl, mix the beef steak tips with soy sauce and cornstarch until well coated.
Cook the Beef:
Heat olive oil in a large frying pan or wok over medium-high heat.
Add the marinated beef and sauté until browned and cooked through, about 5-6 minutes.
Add Green Peppers:
Add the thinly sliced green peppers to the pan with the beef.
Season with salt and pepper to taste.
Cook for about 10 minutes, stirring occasionally, until the peppers are tender but still crisp.
Serve:
Serve the sizzling beef and green pepper stir-fry hot over cooked rice.
Notes / Tips / Wine Advice:
Wine Pairing:
Pair this dish with a light-bodied red wine such as a Pinot Noir or a Beaujolais. The fruity and slightly acidic characteristics of these wines will complement the savory flavors of the beef and the freshness of the green peppers.