Liberian Potato Salad Recipe

Name: Liberian Potato Salad Recipe
Cuisine: Middle Eastern
Ingredients: 4 large potatoes, peeled and cut into eighths and boiled until done; 300g tin mixed beans; 200g French (green) beans, trimmed, halved and lightly steamed; 4 ripe tomatoes, sliced; 1/2 medium onion, sliced into rings; 300g tin sweetcorn; 1/2 cucumber, sliced; 200g mayonnaise; 1 tbsp Dijon mustard; 1 Maggi (or stock) cube; 1/2 lettuce, shredded; 1 tbsp hot oil; 1 tsp ground black pepper; 2 tbsp red wine vinegar; 2 tins beef luncheon meat, cubed