For the salad, finely tear the lettuce and chop the broccoli. Toss together, cover, and refrigerate until ready to serve.For the crunchy toppings, start by melting the butter in a skillet. When the butter is hot (careful not to scorch it!), add the pecans and broken noodles; cook until brown and crispy. Drain on a paper towel and store in a Ziploc (with paper towel) until ready to serve.For dressing, heat vinegar in the microwave until boiling (1-2 minutes). Add the sugar, then shake or stir vigorously until dissolved. Add soy sauce and oil and shake again. Refrigerate until ready to serve.Immediately before serving, toss the salad and toppings together. Shake dressing until mixed well and pour over the other ingredients, lightly tossing it until it's all coated!This salad can be prepared ahead of time and mixed up at the last minute.