Quick Sriracha Beef Lettuce Wraps

Ingredients

• 2 tsp. neutral-flavored oil like grapeseed or peanut oil
• 1 lb. lean ground beef (use ground beef with less than 10% fat for south beach diet)
• 1 t fish sauce
• 1-2 t sriracha sauce (depending on how much heat you want)
• 1 t water
• zest from one large lime
• juice from one large lime (about 1 1/2 t juice)
• 1/4 cup thinly sliced green onion (or double that amount if you're not using the cilantro)
• 1/2 cup chopped cilantro
• 1-2 heads iceberg lettuce