Mexican Turkey Burger

Ingredients

• 1 teaspoon ground cumin
• 1 teaspoon ground coriander
• 1 teaspoon chili powder
• 1 teaspoon paprika
• 2 tablespoons brown sugar
• 2 tablespoons olive oil
• 1/2 cup tomato purée
• salt, to taste
• pepper, to taste
• 1 cup turkey, roasted and shredded
• 2 tomatoes, chopped
• 1/4 cucumber, chopped
• 1/2 red onion, chopped
• 1/4 cup mint leaves, chopped
• 1 lime, juiced
• 1 clove garlic, crushed
• 2 avocados
• 4 bread rolls, split
• 1 head butter lettuce, leaves separated
• 4 slices cheese, of your choice