Honey Dijon vinaigrette summer salad

Salad
4 cups salad greens
½ onion, sliced
1 tomato, diced
Method of prep:
Marinate onion slices in ½ cup of vinaigrette. Place greens in a bowl, top with diced tomatoes and marinated onions. Drizzle desired amount of additional dressing to the salad. Serve.
Honey Dijon Vinaigrette
1/2 cup apple cider vinegar
1 cup salad oil
3 oz Dijon mustard
3 oz honey
½ teaspoon Pro Seasoning
Method of prep:
In a medium sized mixing bowl, combine all ingredients except for the oil. Whisk ingredients until completely combined. Slowly drizzle oil into the mixture while whisking vigorously. Set aside to dress salad.