Caramelized Fennel and Onions Recipe

Ingredients (9)

• 2 large onions, halved then sliced lengthwise (root to tip) in 1/4-inch thick slices
• 2 large fennel bulbs, sliced into 1/4-inch thick slices
• 1/4 cup extra virgin olive oil
• 1 Tbsp butter
• Salt
• 1/4 cup grated Parmesan
• 2 tablespoons chopped fresh parsley
• 1 teaspoon lemon zest
• 2 teaspoons lemon juice