Line large rimmed baking sheet with unbleached parchment paper.
Chop Veggies into bite sized pieces and place on prepared baking sheet.
Drizzle with olive oil and sprinkle with italian seasoning, salt and pepper. Roast veggies for 15 minutes.
Make pesto: Combine all ingredients buts water and olive oil in bowl of food processor and process until well chopped. You will need about ½ cup liquid between the olive oil and water for this recipe....use the ratios you prefer (all water---or veggie broth---is OK if you're oil free). With the processor running, slowly pour in the liquid. Stop to scrape the sides down a couple time and continue to process until smooth and creamy. Set pesto aside.
Cook pasta according to package directions. My experience with gluten-free pasta has been to cut down on the cooking time by 1 minute. I boiled the chickpea pasta for 8 minutes and it was perfect.
Save ½ cup pasta water and then drain. Rinse under cool water.
Whisk ½ cup pesto into the saved pasta water to make the pasta salad sauce.
Place drained pasta in a large bowl. Pour on the pesto sauce and mix well. Add the roasted veggies and toss well. Taste for seasoning, adding more S+P as desired and then mix again. Sprinkle on the nuts and serve. Sprinkle on some fresh herbs, nutritional yeast or crushed red pepper if desired.
Pesto Pasta Salad can be served warm, cold or at room temperature.
Pasta Salad will stay good in the fridge for up to 5 days.
Notes
PASTA: I used gluten-free chickpea pasta from Thrive Market. Use what works well for you inside of your dietary needs. I used small shells. I've also used elbows and rigatoni. NUTS: substitute sunflower seeds or pumpkin seeds for nut allergies. Toasted pine nuts, walnuts or pistachios are also good choices. PESTO: Use the recipe above for a basic dairy-free basil pesto, or make Carrot Top Pesto, Kale + Cashew Pesto or Arugula and Walnut Pesto....any pesto recipe will work well for this pasta salad. NUTRITION INFO: You only need ½ the pesto recipe for the pasta salad so the nutrition information at the bottom of this recipe is a bit off.