Preheat your oven to 425°F (220°C). This high temperature will help to caramelize the veggies beautifully.
In a large mixing bowl, combine the broccoli florets, sliced mushrooms, red bell pepper, zucchini, yellow squash, cherry tomatoes, and red onion.
In a small bowl, whisk together the balsamic vinegar, Dijon mustard, crushed garlic, dried Italian herbs, kosher salt, and olive oil. Pour this dressing over the vegetables and toss until all are well coated.
Spray the large baking sheet with cooking spray to prevent sticking. Spread the coated vegetables in a single layer on the baking sheet. Roast in the preheated oven for 20-25 minutes, or until the vegetables are tender and caramelized, stirring halfway through.
While the vegetables are roasting, bring a large pot of salted water to a boil. Add the DeLallo fusilli pasta and cook according to package instructions until al dente. Drain the pasta and return it to the pot.
Once the veggies are roasted, add them to the pasta along with the drained cannellini beans and pesto. Gently mix everything together until well combined.
Serve the pasta warm, topped with freshly grated Parmesan cheese and a drizzle of balsamic vinegar. Add red pepper flakes for an extra kick, if desired.