Winter Italian Chopped Salad - A better choice!

Ingredients

• 3 Tbsp fresh orange juice
• 3 Tbsp red wine vinegar
• 1 large garlic clove, finely grated
• 1 tsp Dijon mustard
• 1/4 cup Extra-virgin olive oil, plus more for drizzling
• Salt to taste
• 1 cup mini pepperoni rounds, cut in halves
• 1/2 head of iceberg lettuce, chopped roughly
• 1/2 head of radicchio, chopped roughly
• 4 stalks celery, thinly sliced
• 2 navel oranges, peeled and cut into small pieces
• 1 cup pitted black olives, thinly sliced