Prepare the linguine
according to package directions.
Drain and keep warm until ready to serve.
Melt the butter in the center of a large non-stick skillet over
medium-high heat. Add the garlic and cook for 1 minute. Add the
shrimp and chicken. Pan-fry until the chicken is cooked through,
3-4 minutes. Whisk the flour, milk, sherry, and Parmesan cheese
together. Pour into the skillet and bring to a boil while stirring.
Reduce heat to medium and continue to cook for about 5 minutes
until the mixture has thickened, stirring occasionally. Add the
cayenne and fold in the tomatoes and peas. Cook until heated
through. Season to taste with salt and pepper. Arrange the
linguine on individual plates and spoon the sauce over the top.
Garnish with chopped fresh parsley.