shrimp and scallops with saffron

Subtle flavor of saffron with seafood

1 lb. 21-25 count shelll on shrimps ( don't buy peeled shrimps ),
1/2 lb. bay scallops,
1/2 c. pecorino romano cheese,
10 oz. frozen corn,
1 T. lemon juice,
1 c. white wine,
3 oz. onions,
12 oz. whole wheat pasta,
1 c. fat free 1/2 n 1/2 or heavy cream. If using heavy cream add 1/2 cup more,
1 vile saffron,
4 oz. fresh tomato