Heat a skillet on medium high, coated with some olive or canola oil spray. Add the pancetta, cook 5 to 10 minutes until browned, stirring occasionally.
Remove the pancetta and set aside. Add 1 tablespoon olive oil, lower heat to medium. Add the onions, cook for a few minutes then add the garlic and carrot. Cook for a few more minutes, then add the chicken stock.
Add the peas after 2-3 minutes, stir in the Herbes de Provence and the red pepper flakes, and then cover loosely. Cook vegetables on medium-low for about 10 more minutes.
Begin cooking the pasta after you add the peas. When the pasta is done, drain, and stir in the remaining olive oil and add the cheese.
Stir in the pea and onion mixture and add the toasted nuts. Plate and top with a sprinkling of the reserved pancetta. Serve and pass additional cheese passed at the table.