In a large bowl, combine the cooked garbanzo beans, cooked black beans, cooked pinto beans, and cooked corn.

Add the chopped red bell pepper, chopped fresh chives, chopped fresh parsley, and chopped red onion to the bowl.

Mince the garlic clove and add it to the salad mixture.

Drizzle olive oil and red wine vinegar over the ingredients.

Season with salt and pepper to taste.

Mix all the ingredients together well, ensuring they are evenly distributed.

Serve the salad with little toasts spread with olive paste and sliced tomatoes for an elegant presentation.