Using a medium to large sized pot, bring a pot of water to a boil. Cook pasta shells according to box instructions. During the last 2-3 minutes of cooking, add the broccoli florets and hot dogs. Drain the water, rinse and place everything back into the pot.

Add the zucchini, summer squash, broccoli, milk and butter and mix together over medium-low heat. Sprinkle the Annie's cheese (in packet) and the freshly grated gruyere in and mix together until well combined. Season with salt and serve immediately.