Spaghetti and Mussels with Tomatoes and Basil

INGREDIENTS

• Coarse kosher salt, to taste
• 6 oz. spaghetti, preferably multigrain
• 2 Tbs. olive oil
• 1 large shallot, minced
• 1/8 to 1/4 tsp. red pepper flakes
• 1 lb. mussels
• 1/3 cup dry white wine
• 1 tsp. grated lemon zest
• 3/4 lb. cherry tomatoes, halved
• 1/2 cup slivered fresh basil
• 1 Tbs. extra-virgin olive oil
• Freshly ground black pepper, to taste