Garlicky Hoisin Beef

Name: Garlicky Hoisin Beef
Ingredients: 1 cup long-grain rice; ¾ cup hoisin sauce (available in the Asian-food aisle of most supermarkets); 1 ½ tablespoons soy sauce; 1 ½ tablespoons sugar; 4 tablespoons olive oil; 3 tablespoons finely chopped scallions (white parts only); 2 tablespoons finely chopped garlic; 1 teaspoon crushed red pepper (optional); 1 pound flank or boneless sirloin steak, thinly sliced; 1 red, orange, or yellow bell pepper, seeded and thinly sliced; 1 medium sweet potato, peeled, halved lengthwise, and sliced 1/4 inch thick; ⅓ pound (1 1/2 cups) snow or sugar snap peas; 3 scallions (green parts only), cut into 1 1/2-inch lengths