Prepare vinaigrette dressing (your own recipe; use recipe below; or, purchase commercial dressing of your choice). Refrigerate until ready to use.
Wash potatoes and cut into fourths (about ½ thick cubes). Rinse to remove starch and blot dry. Place potatoes in a bowl and toss with 1-2 tablespoons oil. Sprinkle to taste with salt and pepper. Either grill on BBQ using a grill mat, or pan fry 10-15 minutes in a large skillet over medium to medium high heat until almost tender. Stir every 4-5 minutes (do not stir frequently; allow potatoes to brown on one side before turning).
Combine potatoes and meat in a hot skillet, add garlic and butter. Season to taste with steak seasoning then salt and pepper. Continue to meat and potatoes to desired doneness. Remove from heat and partially cool.