Ingredients

• 4 tablespoons olive oil, divided
• 1 pound white button or cremini mushrooms, brushed clean and thinly sliced
• 1 pound whole wheat shell pasta
• Salt and pepper, to taste
• 2 to 3 shallots or 1 medium red onion, chopped
• 2 cloves garlic, chopped or grated
• 1 packed cup kale or spinach, chopped
• 1/4 cup flour
• 1/2 cup white wine
• 2 cups low-sodium chicken or vegetable stock
• 1 1/2 cup whole or 2% milk
• 1 3/4 cups grated Parmigiano-Reggiano, divided
• 1 1/2 cups store-bought crispy fried onions, divided
• 2 5- to 6-ounce cans tuna in water, drained
• 1/4 cup chopped parsley
• Zest of 1 lemon
• 1 cup whole wheat panko breadcrumbs

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