Johnny's Slow Cooker London Broil

Ingredients (9)

• ✓ 2 tablespoons vegetable oil, or as needed
• ✓ 1 (2.5 pound) London broil, cut into thirds
• + 1 teaspoon Creole seasoning, or to taste add to pantry
• + 2 cups beef broth add to pantry
• + 1 (10.75 ounce) can condensed cream of mushroom soup add to pantry
• + ½ cup red wine add to pantry
• + 1 onion, sliced add to pantry
• + 1 (16 ounce) package baby carrots add to pantry
• ✓ 3 potatoes, quartered, or more to taste