Cottage Pie (Dukan-style)

Makes 4 large portions

 Ingredients:

Lean ground sirloin 1 lb

1 shallot, minced

1 garlic clove, crushed

1/2 carrot, shredded thick

3-4 average size mushrooms

1 tbsp balsamic vinegar

1/2 cup ff chicken stock (or replace with water and dry chicken stock)

1 lb cauliflower

2 tbsp fat free cottage cheese

Ff nonstick spray

Seasoning

1 egg, separated (optional)