Cook your elbow macaroni according to the box directions.
Dice up your peppers and onions.
In a 12-inch cast iron skillet or large skillet, cook Conecuh sausage for 4-5 minutes over medium high heat until lightly browned.
Add in the 1 cup chopped red bell pepper, 1 cup chopped green bell pepper, and one small diced onion. Cook for about 7-10 minutes or until the vegetables are tender.
Sprinkle the 1/4 cup flour, 1 teaspoon salt, 1/2 teaspoon paprika, 1/2 teaspoon black pepper, 1/8 teaspoon red pepper, and 1/4 teaspoon of dry mustard over the cooked sausage and vegetables.
Gradually whisk in the 3 cups of whole milk and cook until slightly thickened and bubbly. Stir constantly!
Reduce the heat to low and add 2 cups of Cheddar cheese and 1 cup of Guyere cheese and stir until melted and smooth. Stir constantly!
Slowly add in the cooked pasta and stir until well combined.
Garnish with paprika and diced green onions. Totally optional!