Rice Noodles with Beef and Peanut Sauce

Name: Rice Noodles with Beef and Peanut Sauce
Ingredients: 4 oz rice noodles (we like annie chun's); 1/4 C creamy peanut butter (we like justin's classic peanut butter); 3 tbsp rice vinegar; 2 tbsp reduced-sodium soy sauce; 1 tbsp grated fresh ginger; 1 tbsp dark sesame oil; 3/4 tsp crushed red-pepper flakes; 1/2 lb thickly sliced reduced-sodium deli roast beef, sliced into strips; 3 C shredded napa cabbage (about 1/4 head); 1 C snow peas, trimmed and halved; 2 scallions, chopped; 1/4 C chopped roasted peanuts