Big Mac Skillet

• 1 tbsp extra virgin olive oil
• 500 g lean beef mince
• 0.5 tsp salt
• 0.5 tsp pepper
• 0.5 tsp garlic powder
• 0.5 tsp onion powder
• 400 g tin butter beans, rinsed and drained
• 1 brown onion, thinly sliced
• 0.5 cup shredded cheese
• 0.5 head iceberg lettuce, finely chopped
• 2 tomatoes, diced
• 0.5 cup sliced pickles
• 4 tbsp Burger sauce