Vegan Butternut Squash Mac and Cheese

Name: Vegan Butternut Squash Mac and Cheese
Ingredients: * 2 cup uncooked penne; * 2 cup butternut squash cube, cooked and pureed; * 1 onion, diced; * 1 tbsp vegan margarine (like becel vegan); * 1/2 tsp paprika; * 1/2 tsp chili powder; * 1 tsp garlic powder; * 1 tsp onion powder; * 1 tsp kosher salt; * a pinch of cayenne powder (to taste); * 1 cup unsweetened soy milk; * 1 heaping tbsp flour; * 1/4 cup nutritional yeast; * 1/4 cup daiya cheese shred (i used jalapeno jack flavored shred); * for the topping:; * 1/2 cup panko bread crumb; * 2 tbsp melted butter