1/4cupalmondsminced with skin for garnish - optional
Preheat oven to 375 degrees.
Cook macaroni to al dente, according to package instructions. Drain, be careful not to overcook. Return to cooking pot, cover while preparing sauce.
Prepare cheese sauce by adding cheddar and milk to a saucepan, cook on low until cheese is melted and creamy.
In a medium mixing bowl, whisk together mustard, egg, diced sun-dried tomatoes, yogurt, black pepper, cayenne pepper and salt to taste. While shells are still hot, pour mixture over and stir.
Next, pour warm, melted cheese and milk mixture over shells and stir to combine. Add Mac & Cheese to a casserole dish. If desired, sprinkle shells with a little additional shredded cheddar cheese. Top with minced almonds. Bake 20-25 minutes or until Mac & Cheese is slightly brown around the edges, cheese is melted and almonds are golden.