Lettuce/Spinach Salad with Strawberries

This is a salad I made for Brandi's Graduation BBQ a few weeks ago.
LETTUCE SALAD WITH STRAWBERRIES

1 head romaine lettuce and/or spinach
1 Bermuda onion
1 pt. strawberries, sliced
1/2 c. mayonnaise, not lite
2 tbsp. cider vinegar
1/3 c. sugar
1/4 c. low-fat milk
2 tbsp. poppy seeds

Whisk last 5 ingredients together. Dressing makes enough for 2 salads.

Mix dressing as desired with lettuce, onion, and strawberries.

Sliced brie cheese and almonds is also a good addition.