Pesto without radish

2 cups uncooked pasta (macaroni or penne) 2 tablespoons olive oil 1 onion , sliced 1 bell pepper , sliced 2 garlic cloves , sliced 1 cup mushroom , sliced 2[...]

4 lbs dutch yellow potatoes , halved lengthwise (1 inch diameter) 1 lb green beans , trimmed,cut into 1 inch pieces 1 cup purchased pesto sauce (or use my[...]