Potato Preparation: Begin by placing a pot of water on the stove to boil. Add the baby potatoes and cook them until they are sufficiently tender to be pierced easily with a fork. Subsequently, preheat a griddle over medium heat. Transfer the boiled potatoes onto the griddle, using a spatula to firmly press each potato down, thereby smashing them into a flattened shape. Drizzle additional olive oil over the potatoes and season them with salt, pepper, and garlic powder. Continue to cook, flipping occasionally, until each potato is crispy on both sides.
Steak Preparation: While the potatoes are cooking, prepare the steak by cutting it into bite-sized cubes. Place these cubes on a different area of the griddle. Season liberally with Montreal Steak Seasoning and cook, turning occasionally, until they reach the desired level of doneness.
Garlic Butter Addition: Once the steak is cooked, reduce the heat of the griddle. Add the butter and minced garlic to the steak, stirring continuously to coat the steak bites in the garlic butter mixture evenly.
Final Assembly: Once the potatoes are crispy, sprinkle a generous amount of shredded cheddar cheese over them, allowing the heat to melt the cheese. Finish by scattering the chopped green onions over both the steak and potatoes. Serve immediately while hot and enjoy the harmonious blend of flavors.