Chop your asparagus, mushrooms and red onion. Set aside.
Warm a non-stick pan over medium heat. Add your vegetable broth and five cloves of minced garlic. Then add your vegetables and garlic powder. You are going to cook these vegetables for approximately 8 minutes.
While the vegetables soften, cook your pasta to al dente according to package directions. Save 1/2 cup of the pasta water before you drain, and add it to the vegetables.
Add the cooked vegetables to the sauce, give it a stir and taste. Add salt and pepper as needed. Plate and add pumpkin seeds on top.