INGREDIENTS
2/3 cup
Flat-leaf parsley, loosely packed
7
Onions (about 4 lbs.), medium
1 1/2 tbsp
Lemon juice, fresh
10 oz
Penne or fusilli pasta, whole-grain
1 1/2 tsp
Black pepper, freshly ground
2 tsp
Salt
3/4 tsp
Sugar
5 tbsp
Olive oil
1 3/4 cups
Walnut, halves
1 lb
Ricotta salata