Prepare a baking sheet with foil. Throughly rinse produce and pat dry. Lightly scrub potatoes. Bring a medium pot with potatoes and lightly salted water to a boil. Reduce to a simmer, and cook for 18-20 minutes, or until tender. Transfer to a bowl and reserve. Mince chives. Trim ends from broccolini and cut into 2” lengths. Rinse steaks, pat dry, and season with a pinch of salt and pepper.

In a medium non-stick pan over medium heat, combine miso, steak spice, about half of the can of tomato juice (you only need 3 oz. - reserve the rest for another use), Worcestershire, honey, and balsamic vinegar. Cook until thickened, about 1-2 minutes. Season to taste with salt and pepper. Transfer to a serving dish or small bowl and wipe pan clean. Sauces are perfectly thickened, or "nappe" (nap-PAY), when they coat the back of a spoon or you can draw a line though the sauce on the bottom of the pan.

Return pan to medium-high heat and add 2 tsp. olive oil and steaks. Cook on each side for 4-5 minutes, or until they reach a minimum internal temperature of 145 degrees. Transfer steaks to a plate to rest for at least 5 minutes. Wipe pan clean.

Turn broiler in oven to high and place prepared baking sheet under broiler on upper rack. A preheated baking sheet will brown bottoms of crash potatoes while the broiler browns the tops. Add 1/2 cup water and broccolini to pan in which you cooked steaks. Bring to boil and cook until broccolini is tender, about 5-6 minutes. Transfer to plate, toss with 1 tsp. olive oil, season to taste with salt and pepper, and set aside.

Place potatoes on cutting board and use a potato masher or slotted spatula to gently flatten potatoes to about 3/4” thickness. Potatoes should still hold together (if they fall apart you can still use them, just don't press too hard on the remaining ones). Remove hot baking sheet from broiler, coat with cooking spray, and add potatoes. Brush with 1 Tbsp. olive oil and sprinkle with salt, pepper, and Parmesan. Return baking sheet to broiler and cook until golden brown. (Broilers vary in strength - this may take 2-6 minutes, so watch closely to prevent burning.)

Spoon some steak sauce on a plate. Arrange potatoes, broccolini, and steak on plate. Garnish with chives, and serve any remaining steak sauce on the side.