Ingredients

• 1 tablespoon butter
  
• ¹/₂ medium onion, chopped
  
• 2 garlic cloves, minced
  
• ¹/₂ teaspoon salt
  
• ¹/₂ teaspoon pepper
  
• 8 ounces arborio or other short grain rice
  
• ¹/₃ cup dry white wine
  
• 3 cups chicken stock, heated to near-boiling
  
• 2 ounces thinly sliced prosciutto
  
• 1 ¹/₂ cups fresh peas, divided
  
• 1 tablespoon (loosely packed) fresh mint leaves, plus more for serving
  
• 1 tablespoon fresh lemon juice
  
• 1 teaspoon fresh lemon zest
  
• ¹/₂ cup finely grated parmesan cheese
  
• crumbled feta for serving