Citrus Avocado Salad

Ingredients

• 12 cups torn salad greens
• 2 medium grapefruit, peeled and sectioned
• 2 medium navel oranges, peeled and sectioned
• 2 medium ripe avocados, peeled, pitted and cut into chunks
• 1 small red onion, thinly sliced and separated into rings
• dressing:
• 1/2 cup canola oil
• 1/4 cup sugar
• 3 tablespoons lemon juice
• 1-1/2 teaspoons poppy seeds
• 1/2 teaspoon salt
• 1/4 teaspoon ground mustard
• 1/4 teaspoon grated onion