My current favourite is:
350g pkt. spaghetti (cooked as on pkt.)
12 rashers of steaky smoked bacon (diced and fried till brown)
150g pine nuts (dry fried in non-stick pan till golden)
190g jar of sun-dried tomato pesto
When pasta is ready stir in tomato pesto, toasted pine nuts and fried bacon and serve!!
Yum 
I sometimes add cougettes too (2/3 of them cut into julienne strips/matchsticks and boiled for 3 mins in with spaghetti)