Mixed Salad with "House Dressing"

from Rachael Ray's 30 Minute Meals, Food Network

Ingredients:
1 bag chopped romaine and mixed greens - (10 oz)
4 radishes, sliced
3 tablespoons vinegar
1 teaspoon sugar
1 teaspoon sweet paprika
1 tablespoon grated white onion and juice
1/3 cup extra-virgin olive oil
Salt, to taste
Freshly-ground black pepper, to taste
2 tablespoons sesame seeds (optional)

Directions:
1. Mix greens and radishes.
2. In a small bowl, combine the vinegar, sugar, paprika and onions juice. Whisk in extra-virgin olive oil. Season the dressing with salt and pepper, to taste.
3. Dress and toss salad then sprinkle with sesame seeds (optional) and serve.