Vegetable Pasta with Pesto

0 Roast red pepper if desired in a 400 degree oven for about 30 minutes or until it starts to brown
1  Boil pasta according to box instructions but undercook it slightly because it will continue cooking after drained. Usually 7- 8 minutes. Save at least a cup of pasta water for pesto and then drain and add pasta to a large bowl
2 Put all the pesto ingredients in a food processor and blend till smooth. Slowly add in water from pasta until pesto is a creamy consistency
3 Chop up tomatoes and red peppers and add to the bowl with pasta.
4 Stir in the pesto with the pasta. I like a lot of pesto to make sure pasta is coated. Then add in the arugula
5 Top with cheese if desired and then ready to serve!