Shepherd'S Pie

Ingredients

• 3 Tbsp. oil
• 2 medium onions, finely chopped
• 2 garlic cloves, finely chopped
• 1 1/2 lb. ground lamb or beef
• 1 (6 oz.) can tomato paste
• 2 bouillon cubes
• 1 heaped Tbsp. flour
• 1 c. white wine
• 1/2 c. water
• salt and freshly ground black pepper
• 1/2 tsp. tarragon
• 3 large potatoes, peeled
• 3 oz. butter
• 1 c. milk
• 1/2 c. cooked corn or green beans
• 2 Tbsp. Parmesan cheese