Chopped Mexican Salad - A better choice!

Ingredients

• ½ cup sour cream
• ½ lime, juiced
• ½ tsp Mexican seasoning
• 1 baby cos lettuce, trimmed
• 1 bunch coriander, finely chopped
• 1 red onion, finely chopped
• 1 cucumber, diced
• 1 tomato, diced
• 1 avocado, diced
• 125g corn kernels, rinsed, drained
• 125g kidney beans, rinsed, drained
• Corn chips, broken into pieces