Combine marinade ingredients. This can be done directly in bag or container being used to marinate steak.
Store Steak with marinade in either a food storage bag or large container and keep refrigerated.
Finely chop green onions or chives and crumble blue cheese. Combine with sour cream in a fridge safe sealable container and keep refrigerated.
Clean and poke holes in baking potatoes then microwave using potato setting. Remove steak from fridge and allow to come to room temperature.
Pre-heat grill to 400 degrees. Oil now cooked (or mostly cooked) potatoes and place on top rack if using grill. Alternatively if broiling in oven prepare sheet pan by greasing thoroughly.
Microwave frozen vegetables according to package directions. Alternatively if using fresh vegetables prepare grill basket and cook for 15-25 minutes prior to cooking steak.
Cook 2-4 minutes per side according to preference and thickness.