Step 1

Melt butter in a large skillet over medium heat. Saute shrimp until firm and pink, 3 to 4 minutes. Remove shrimp from skillet and set aside.

Step 2

Add mushrooms, celery, bell pepper, and onions to the skillet. Saute until all vegetables are tender, 7 to 8 minutes.

Step 3

Stir in flour, bouillon, seafood seasoning, garlic, and cayenne. Slowly add milk, stirring constantly. Bring to a boil and continue stirring until mixture starts to thicken. Add cooked rice, Cheddar cheese, and shrimp. Season with salt and pepper and stir to combine. Serve.