Springtime Frittata from 'Family Table'

Ingredients (18)

• 1 medium russet potato, scrubbed
• 1 large artichoke, preferably with stem
• 2 tablespoons olive oil
• 1 heaping cup thinly sliced onion
• 1 teaspoon kosher salt
• 10 medium asparagus stalks, woody bottoms snapped off, peeled, and cut into 1/2-inch pieces
• 2 packed cups chopped Swiss chard leaves (from about 1 small bunch, trimmed)
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• 9 large eggs
• 3 large egg yolks
• 1/4 cup heavy cream
• 1/2 cup grated Gruyère
• 1/4 cup grated Parmigiano-Reggiano
• 2 tablespoons finely chopped mixed fresh basil, Italian parsley, and chives
• 2 tablespoons dried bread crumbs
• 1 1/2 teaspoons kosher salt
• Freshly ground black pepper
• 1 tablespoon olive oil, plus more for drizzling