1. Preheat oven to 180°C (350°F).

2. Place cashews on a baking sheet and bake in the oven about 8 minutes or until well toasted. Set aside to cool.

3. Meanwhile, pour half the oil into a very hot wok and coat entire surface. Sauté the beef quickly in three batches over very high heat. Remove meat and set aside.

4. Reduce heat to medium and add remaining oil. Add the garlic, onion, sweet pepper, bok choy, and cayenne pepper. Sauté for 3 minutes, stirring frequently.

5. Add the daikon, Napa cabbage, pineapple, beef, soy sauce, and fish sauce. Stir for 2 minutes.

6. Serve over a bed of noodles, rice, or rice vermicelli. Sprinkle with fresh coriander and toasted cashews.

CHEF'S SECRET: Prepare all ingredients before starting. Measure out the sauces, vegetables, and seasonings. Cut the meat across the grain for added tenderness once it's cooked.