In Italian cuisine, it is served with a pesto sauce.

And those are roasted red peppers on baguette with pesto sauce.

The pesto sauce was very good, the substitute nut they used worked.

Add half of the pesto sauce, the reserved cooking liquid, salt and pepper.

Spoon a little of the pesto sauce over the bottom of the pan.

Drizzle some pesto sauce over all and serve immediately.

Linguini in pesto sauce was fresh but needed salt to bring out the flavors.

Spread each pastry circle with about 5ml (1 level tsp) pesto sauce.

I've got enough pesto sauce for both of us.

He sniffed the pasta as she poured the hot pesto sauce over it.