Lemon Butter Cod with Toasted Asparagus Salad

Name: Lemon Butter Cod with Toasted Asparagus Salad
Ingredients: 4 filets cod (6 ounces each); 1/4 cup unsalted butter; 2 tablespoons extra virgin olive oil; 1 lemon juiced and zested; 2 cloves garlic (minced); 1/4 teaspoon salt; 1/4 teaspoon ground black pepper; 1 tablespoon fresh curly parsley (chopped); Lemon slices (for garnish); 2 French bread (thick slices day-old ); 1 tablespoon olive oil; 1/8 teaspoon salt; 1/2 cup pistachios (chopped); 1 pound asparagus (tough bottoms removed); 1/2 cup grated Parmigiano Reggiano; 1/4 teaspoon crushed red pepper flakes (to 1/2 teaspoon depending on desired heat); Salt and freshly ground black pepper (to taste); Zest from 1 lemon; Juice from 1 to 2 lemons (to yield 1/4 cup); 1/4 cup extra-virgin olive oil