Prepare the steak by cutting it into bite-sized cubes and drying with paper towels. Season generously with salt and pepper.

Heat a skillet over high heat and add olive oil until shimmering.

Sear steak bites in a single layer for 1-2 minutes on each side until golden brown. Remove from skillet.

Lower heat to medium, add butter, and let it melt. Stir in minced garlic and sauté for 30 seconds.

Add sliced zucchini to the skillet, cooking for 3-5 minutes until tender-crisp.

Combine the steak bites with the zucchini, tossing gently to coat in garlic butter.

Serve hot, garnished with fresh parsley if desired.