Creamy Spaghetti with Brussels Sprouts

Name: Creamy Spaghetti with Brussels Sprouts
Ingredients: 3 teaspoons extra-virgin olive oil , divided; 2 large shallots , chopped (about ½ cup ); 8 ounces Brussels sprouts , trimmed and halved (about 2 cups ); 2 tablespoons water plus 1½ cups , divided, plus more as needed; 3 medium cloves garlic , finely chopped ( 1 tablespoon ); 8 ounces whole-wheat spaghetti; 2½ cups unsalted vegetable broth; 1⅔ cups finely grated Asiago cheese (about 2½ ounces ), plus more for garnish; ¾ cup heavy cream; ⅛ teaspoon crushed red pepper , plus more for garnish; ⅛ teaspoon salt; 2 tablespoons thinly sliced fresh basil