Ingredients

1 (15-oz.) bag frozen French fries (about 4 c.)

1/2 tsp. sweet paprika

Kosher salt

1 (1 1/2-lb.) flank steak, cut into 2 pieces against the grain

Freshly ground black pepper

6 tbsp. extra-virgin olive oil, divided

1 large shallot, finely chopped

1/4 c. balsamic vinegar

2 tbsp. fresh lemon juice

1 tsp. Dijon mustard

8 oz. English cucumber, halved and thinly sliced

6 oz. baby arugula (about 8 packed c.)

1 1/2 c. grape tomatoes, halved

2 oz. crumbled blue cheese (about 1/2 c.)

Preparation

Step 1Preheat oven to 425º. On a baking sheet, arrange fries in a single layer.Step 2Bake fries until golden and crisp, about 25 minutes. Sprinkle with paprika; season with salt and carefully toss to combine.Step 3Meanwhile, season steak with 1 teaspoon salt and 1/4 teaspoon pepper. In a large cast-iron or heavy skillet over medium-high heat, heat 1 tablespoon oil. Cook steak, flipping halfway through, until browned on both sides and medium-rare, 5 to 7 minutes per side. Transfer to a cutting board; tent with foil. Let rest 10 minutes.Step 4Meanwhile, wipe excess oil from skillet, leaving browned bits in bottom of skillet. Add shallot and 1 tablespoon oil and cook over medium heat, stirring occasionally, until shallot softens and is translucent, 1 to 2 minutes. Step 5Add vinegar and cook, scraping browned bits from bottom of pan, until reduced by half, 2 to 3 minutes. Remove skillet from heat and pour vinegar mixture into a medium heatproof bowl. Whisk in lemon juice, mustard, and 1/4 teaspoon salt. Whisking constantly, slowly pour in remaining 4 tablespoons oil; season with salt and pepper.Step 6Thinly slice steak against the grain. Divide cucumber, arugula, tomato, steak, and fries among plates. Sprinkle with blue cheese and drizzle dressing over.

Starting the vinaigrette in the skillet after cooking the steak means all that good browning in the pan gets swooped right up and whisked into a super-tasty, warm dressing. Then all you have to do is assemble the ingredients on the plate, drizzle, and serve. Made this? Let us know how it went in the comments below!