Pressure-Cooker Sicilian Steamed Leeks

Ingredients

• 1 large tomato, chopped
• 1 small navel orange, peeled, sectioned and chopped
• 2 tablespoons minced fresh parsley
• 2 tablespoons sliced Greek olives
• 1 teaspoon capers, drained
• 1 teaspoon red wine vinegar
• 1 teaspoon olive oil
• 1/2 teaspoon grated orange zest
• 1/2 teaspoon pepper
• 6 medium leeks (white portion only), halved lengthwise, cleaned
• Crumbled feta cheese