1
Preheat the oven to 400°F. 
2
On a baking sheet, toss the mushrooms with 1 tablespoon olive oil and a pinch of salt. Roast until browned, about 10-15 minutes. 
3
Bring a large pot of salted water to a boil. Add the pasta and cook according to package instructions. Drain the pasta, return to the pot, and drizzle with olive oil. 
4
In a food processor, blend the arugula, garlic, parmesan, 1/4 cup olive oil, pine nuts, lemon juice, salt and pepper until smooth. 
5
Toss the pasta, mushrooms, roasted red peppers and olives with the pesto sauce until evenly coated. 
6
Divide the pesto pasta between plates and top with parmesan.
