Drain oranges in a colander over a bowl, reserving syrup Add vinegar, olive oil, mustard, salt, pepper, and garlic powder to syrup; stir with a whisk. Combine oranges, endive, and onion in a bowl; add dressing, tossing gently to coat.
Nutritional Information:
CAL 85 (26% from fat); PRO 0.7 g; FAT 2.5 g (sat 0.3 g); CARB 15.1 g; FIB 0.6 g; CHOL 0 mg; IRON 0.7 mg; SOD 237 mg; CALC 28 mg.