Sunday roast

Ingredients:

# For the Roast:
– **1.5 kg (3.3 lbs)** beef, chicken, or lamb (choose your preferred meat)
– **2 tablespoons** olive oil
– **Salt and black pepper**, to taste
– **2 cloves** garlic, minced (optional)
– **2 sprigs** fresh rosemary or thyme (optional)

For the Vegetables:
– **4 large potatoes**, peeled and cut into chunks
– **4 carrots**, peeled and cut into chunks
– **2 parsnips**, peeled and cut into chunks
– **1 large onion**, peeled and quartered

For the Gravy:
– **2 tablespoons** all-purpose flour
– **250 ml (1 cup)** beef or chicken stock
– **1 tablespoon** Worcestershire sauce (optional)
– **Salt and black pepper**, to taste
Instructions: