Steak -- Rub or brush the steak with olive oil, salt, pepper and red pepper flakes. And let marinate 2-8 hours. The longer the better, but even 2 hours will give it a nice flavor. I marinate it right in a large baggie.
Dressing -- Mix together the olive oil, broth, soy sauce, lemon juice, ginger, dijon mustard, salt and pepper. Mix well in a small measuring cup or bowl and set in the refrigerator covered in plastic wrap until ready to use.
Pasta -- Cook the pasta according to directions. Drain and return to the pot and cover to keep warm.
Steak -- Now, as the pasta cooks, grill the steak. An inside grill pan works great for this, high heat lightly oiled. Approximately 5 minutes per side, depending on the thickness, until golden brown and crusty and medium rare. Skirt steak only takes minutes and works great for this salad, but feel free to use any of your favorite cuts of beef. Let the steak rest before slicing.
Salad -- After the steak has rested, slice while still warm, and remember to always slice against the grain, this will give you a very tender slice of steak. In a large bowl, combine the arugula, cucumbers, sun dried tomatoes, onions, and the slightly warm pasta. Top with with sliced steak and toss with the dressing. I love to garnish it with pea shoots which gives a little texture and nice combination with the arugula and or watercress, but it is not necessary.
This is meant to be a lighter health conscious salad so it is light on sauce - but has tons of flavor. ENJOY!