Wild Herb Ravioli

INGREDIENTS

• 3 tablespoons unsalted butter, divided
• 1 1/2 ounces chickweed or spinach, stems removed (2 cups)
• 1 ounce deadnettle or henbit tops, including flowers, or spinach, stems removed (1 1/2 cups)
• 1 ounce wild garlic greens or chives, cut into 1/2- to 1-inch lengths (3/4 cup), plus more for garnish
• Coarse salt and freshly ground pepper
• 2 ounces ricotta cheese (1/4 cup)
• 2 ounces freshly grated Parmesan (1/2 cup), plus more for sprinkling
• 18 egg-roll wrappers (about 8 inches square)
• 1 tablespoon olive oil