Classic Pork Sausage Rolls

Ingredients

1 pound  pork  sausage
1 tablespoon olive oil
1 small onion, finely chopped
2 cloves garlic, minced
1 teaspoon dried thyme
1 teaspoon dried sage
Salt and pepper to taste
1 package of pre-made puff pastry, thawed
1 egg, beaten for egg wash

Directions