Heat a large pot of salted water to a boil. Cook the pasta according to package directions. Drain and rinse under cold water. Drain again.
Place the pasta in a bowl with the arugula, peppers, and tomatoes.
In a small bowl or container combine the olive oil, balsamic vinegar red wine vinegar, mustard, shallots, salt and pepper. Pour the dressing over the pasta salad and toss well to combine. Taste and adjust the seasonings as needed.
Notes
This isn’t just a vegetarian pasta salad, it’s also a vegan pasta salad. So a good back pocket thing to keep in mind for potlucks, or whenever you know there will be the need for a vegan offering. Add some fresh herbs in here if you like – slivered basil, oregano, thyme– all would be good.