Roast the pine nuts in a pan without fat, take them out and let them cool down. Cook the pasta in boiling salted water according to the instructions on the packet. Meanwhile clean, wash and slice the celery.
Peel onion and cut into fine rings. Quarter the bell peppers, clean, wash and cut into strips. Fry bacon crisply in a hot pan without fat. Take out and drain on kitchen paper.
Clean the salad, wash thoroughly and pat dry. Peel garlic and chop roughly. Wash basil, dab dry and chop coarsely. Finely chop basil, pine nuts and garlic in the universal chopper.
Finely grate the parmesan. Add cheese and olive oil and puree. Season pesto with salt, pepper and lemon juice. Mix pasta, salad, paprika, bacon, celery, onion and pesto and place in a bowl.
Serve sprinkled with basil leaves.