1. 1. In a large pot, heat some oil over medium-high heat.

2. 2. Add the lamb stew meat and brown on all sides, about 5 minutes.

3. 3. Add the celery, carrots, button mushrooms, and baking potatoes to the pot.

4. 4. Season with salt, pepper, and any desired herbs or spices.

5. 5. Pour enough water or broth to cover the ingredients.

6. 6. Bring to a boil, then reduce heat to low and simmer for 1.5-2 hours, or until the lamb is tender and vegetables are cooked through.

7. 7. Adjust seasoning if needed before serving.