Combine chili, lime juice, fish sauce, oil, SPLENDA®, and ginger in a jug. Whisk together until well mixed.
Preheat a barbecue plate or chargrill over high heat. Rub beef with oil. Grill for 3 to 4 minutes on each side for a perfect medium doneness, or until desired. Remove to a plate, cover, and let sit for 5 minutes. Slice thinly before serving.
Combine tomato, cucumber, salad mix, shallots, mint, coriander, basil, and beef in a large bowl, gently tossing to mix. Serve on plates and drizzle with dressing.