Mixed Salad with Mango Dressing Recipe

½ head lettuce

cut into bite-size pieces

1 medium green bell pepper

sliced

1 medium tomato

sliced and seeded

1 small white onion

sliced

1 ripe mango

peeled and pitted

½ cup water

⅓ cup extra-virgin olive oil

¼ cup freshly squeezed lemon juice

2 slices white onion

or to taste

2 tablespoons honey

2 teaspoons chopped fresh basil

salt and ground black pepper to taste