Add olive oil to a large skillet over medium-high heat. Once the pan is hot add the steak in a single layer, working in batches as needed. Sprinkle with salt and pepper to season. Cook the steak for 4-5 minutes, stirring often.
Reduce heat to low and melt approximately 4 tablespoons butter in the pan. Add the minced garlic to the butter; cook for approximately 1 minute. Stir to coat the steak bites in the garlic butter and continue to cook for an additional minute or so.
Remove pan from heat and sprinkle with fresh chopped parsley, salt, and pepper, to taste. Enjoy!