Clean corn, cut peppers in half (leave core in for now), cut red onion into thick slices. Brush vegetables with a little vinaigrette. Grill until charred and beginning to soften. Do not overcook. Take off vegetables as they finish and cool. Meanwhile cook orzo in chicken broth uncovered about 8-10 minutes until al dente. Most of broth will be absorbed. Remove from heat and let cool. Drain beans, cut corn from ears, core and dice peppers, chop onions. Combine everything. Add remaining vinaigrette and toss well. Season to taste with salt and pepper. Note: This salad has a nice flavor with simply the smoky flavor of the grill, a bit of vinaigrette and the chicken broth. It can also take on a southwestern flavor by adding chile powder, cumin and/or other southwest seasonings. Also try it on the Italian side by adding garlic and herbs such as oregano, a little rosemary, etc. Vegetables may be added or taken away depending on individual taste and what is in the fridge. Try grilled zucchini, green onions next time. More orzo would make it more of a pasta corn salad.