Hidden Veggie Mac & "Cheese" - Oliver's Markets

Ingredients

• 1 lb. of your favorite pasta (gluten-free or regular)
• 2 tablespoons butter or coconut oil
• 1 small yellow squash, cut into small cubes
• 1 small carrot, peeled and diced
• 1/2 small sweet onion, diced
• 1/2 teaspoon garlic powder
• 3/4 teaspoon ground mustard
• 1-2 tablespoons nutritional yeast (optional)
• 1 teaspoon salt
• 1 can coconut milk
• 1 egg yolk
• Pepper, to taste
• 1 can tuna, drained (optional)