ROAST BEEF SANDWICHES

Roast Beef Sandwiches image

Provided by Martha Stewart

Number Of Ingredients 10

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2 tablespoons olive oil
1 tablespoon unsalted butter
1 1/2 pounds beef eye of round
1 1/2 teaspoons coarse salt
1/2 teaspoon freshly ground pepper
3 firm, ripe avocados
2 medium tomatoes, cut into 1/4-inch-thick slices
Lettuce and radicchio, for serving
12 slices rustic bread (1/2 inch thick each)
Horseradish Cream for Roast Beef Sandwiches

Steps:

Preheat oven to 425 degrees. Heat a large ovenproof skillet over medium-high heat until warm. Add oil and butter; heat until oil is hot and butter has melted.
Season beef with salt and pepper; place in skillet. Cook until beef is well browned on all sides, about 5 minutes.
Transfer skillet to oven. Bake until an instant-read thermometer registers 130 degrees for medium-rare, 18 to 22 minutes. Transfer beef to a cutting board; let rest at least 20 minutes before slicing.
Slice beef very thinly crosswise. Peel and pit avocados; cut into 1/2-inch-thick slices. Arrange tomatoes, lettuce, radicchio, avocados, and beef over half the bread. Spread horseradish cream onto each remaining bread slice, and place on top of sandwich, spread side down.