Vegetables - My Favorite Dinner Party

Ingredients

• 2 Tbs. unsalted butter
• 1 Tbs. minced peeled fresh ginger
• 1 medium lime, finely grated to yield 1 tsp. zest and squeezed to yield 1 Tbs. juice
• 3 Tbs. extra-virgin olive oil
• 1-1/4 lb. Brussels sprouts, trimmed, and quartered lengthwise if large, halved if small
• Kosher salt
• 3 medium leeks, white and light-green parts only, cut into 1/2-inch-thick rounds, rings separated and washed well but not dried