Texas Sweet Onion, Tomato and Cucumber Salad

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• 1 medium (10 to 12 ounces) Texas SpringSweet or 1015 Texas SuperSweet Onion, thinly sliced and separated into rings
  
• 3 ripe tomatoes, sliced
  
• 1 cucumber, peeled and sliced
  
• 1/2 cup vegetable oil
  
• 1/4 cup white wine vinegar
  
• 1 teaspoon Dijon mustard
  
• 1/2 teaspoon salt
  
• 1/4 teaspoon black pepper
  
• 1/4 teaspoon sugar
  
• 1/4 cup sliced fresh basil leaves
  
• Shaved fresh Parmesan cheese

Place half of the onion rings in a large, shallow casserole dish. Layer the tomato and cucumber slices over the onion and top with the remaining onion rings.

In a small bowl, combine the oil, vinegar, mustard, salt, pepper and sugar; whisk well to blend. Pour over vegetables. Top with fresh basil. Cover and let marinate several hours in refrigerator. Top with cheese before serving.

Makes 8 to 10 servings.