Herb-Crusted Beef Roast with Pistachio-Leek Pesto

Ingredients

• 1 beef Top Round Roast (3 to 4 pounds)
• 1 cup sliced leeks, white and light green parts only (about 1 leek)
• 2 teaspoons kosher salt, divided
• 1 teaspoon freshly gound black pepper
• 1 cup fresh basil leaves
• 1/2 cup fresh thyme sprigs
• 1 cup loosely packed fresh parsley
• 2 tablespoons chopped shallots
• 1 tablespoon minced garlic
• 1/2 cup chopped pistachios, toasted, divided
• 1/4 cup olive oil
• 1 tablespoon balsamic vinegar