French Onion Beef Tenderloin for Two

Name: French Onion Beef Tenderloin for Two
Ingredients: 8 ounces beef tenderloin (filet mignon) or sirloin steak, 1-1 1/2 inches thick, trimmed and cut into 2 steaks; ¼ teaspoon minced dried onion; ¼ teaspoon salt, divided; ¼ teaspoon freshly ground pepper; 3 teaspoons canola oil, divided; 1 large sweet onion, thinly sliced; 2 1/2 tablespoons dry sherry (see Note); 1 ½ teaspoons all-purpose flour; ½ cup reduced-sodium beef broth; 1 teaspoon chopped fresh thyme; 2 slices whole-grain baguette (1/2 inch thick), toasted; ¼ cup shredded Swiss cheese