Begin by preparing your marinade for the steak, combining olive oil, garlic, salt, and pepper in a bowl. Place the flank or sirloin steak in the marinade, ensuring it’s well coated. Allow it to rest for at least 15 minutes at room temperature, or up to 1 hour in the refrigerator.

While the steak marinates, preheat your grill or cast iron skillet over medium-high heat for about 5 minutes.

Slice the zucchini into approximately 1/4-inch thick pieces. Toss the zucchini slices with olive oil, salt, and pepper.

Carefully place the marinated steak onto the hot grill or skillet, cooking for 4-5 minutes on each side for medium-rare.

While the steak is resting, add the prepared zucchini to the grill or skillet, grilling for about 3-4 minutes on each side.

To assemble your bowl, place a base of brown rice or quinoa, layer the sliced steak on top, followed by grilled zucchini, and sprinkle fresh herbs.