Sauce
½ cup low-sodium beef broth
¼ cup oyster sauce
2 tablespoons low-sodium soy sauce
1 tablespoon granulated sugar
2 teaspoons cornstarch
1 tablespoon vegetable oil
1 tablespoon toasted sesame oil
1 tablespoon peeled, finely grated fresh ginger
2 large garlic cloves, minced or pushed through a press
1 pound top sirloin, cut into strips about 3 inches by ¼ inch by ¼ inch
3 large bell peppers, 1 red, 1 green, 1 orange, each cut into ¼-inch strips
1 medium yellow onion, cut vertically in half and thinly sliced
¼ cup fresh cilantro leaves
3 cups cooked rice