Get ready to wow your guests with French Onion Beef Roll-Ups, the ultimate savory party snack! These easy-to-make appetizers combine tender beef, rich caramelized onions, and gooey Gruyère cheese, all wrapped in flaky crescent dough. Perfect for any gathering, they are sure to be a crowd-pleaser. Ready to impress?
1 lb thinly sliced beef (flank steak or sirloin)
2 large onions, thinly sliced
3 tablespoons unsalted butter
1 tablespoon olive oil
1 teaspoon sugar
1 teaspoon thyme (fresh or dried)
Salt and pepper to taste
1 cup shredded Gruyère cheese
1 package (8 oz) of crescent dough
Fresh parsley for garnish (optional)