Take the steak out of the fridge and let it sit until it reaches room temperature—this helps it cook evenly. Rub both sides with olive oil, salt, pepper, garlic powder, and smoked paprika. Let the flavors soak in while you prep the other parts.
Slice the zucchinis into thick rounds or long strips. Toss them lightly in olive oil and sprinkle with a little salt and pepper. They don’t need a lot of seasoning since the grill gives them a ton of flavor.
Preheat your grill or grill pan until it’s hot. Grill the zucchini for about 2–3 minutes per side until they have nice grill marks and are tender. Set aside. Next, grill the steak for 4–5 minutes per side for medium-rare or cook longer depending on your preference. Let the steak rest after grilling.
While the steak rests, cook the quinoa according to the package instructions. Fluff it with a fork once done. I like to add a pinch of salt or a splash of olive oil for extra flavor.
In a small bowl, mix your sour cream or Greek yogurt with Dijon mustard, garlic powder, smoked paprika, a pinch of salt, and a splash of lemon juice (optional). Stir until smooth. This sauce ties everything together beautifully.
Place quinoa at the base of each bowl. Arrange the grilled zucchini slices and sliced steak neatly over the top. Finally, drizzle generously with your creamy garlic sauce. That’s it—dig in!