Mediterranean Three Bean Salad

1 (15 ounce) can cannellini (white kidney) beans, rinsed and drained

1 (15 ounce) can garbanzo beans, rinsed and drained

1 (15 ounce) can dark red kidney beans, rinsed and drained

½ onion, minced

2 cloves garlic, minced

2 tablespoons minced fresh parsley, or to taste

¼ cup olive oil

1 lemon, juiced

salt and ground black pepper to taste

Combine cannellini beans, garbanzo beans, kidney beans in a mixing bowl. Add onion, garlic, parsley, olive oil, lemon juice, salt, and black pepper; mix well.