Cook pasta according to package directions for al dente. In the last 5 minutes, add broccoli to pasta. Drain and return to pan. Set aside.
In a large skillet or frying pan, melt butter over medium heat.
Add onions and carrots and sauté until onions are translucent and tender.
Make a roux by sprinkling flour over the onions and carrots. Stir and cook flour for 2-3 minutes,
Slowly pour milk, heavy cream, vegetable broth, stir and then add garlic powder, Slap Ya Mama, ground mustard, turmeric and black pepper into pan, stirring constantly until smooth.
Reduce to low and let sauce thicken, stirring frequently.
Once sauce has thickened, remove from heat, add both types of cheese, stir until combined then add broccoli and pasta to pan. Stir until combined and serve hot.