Tuna pasta salad

Had a lovely visit with some mates today, who were looking for easy, quick but tasty dinners - we found a few - and I chucked this together when I got home, so I thought I'd add it here too.  Took about 13 minutes, start to finish.

Pasta - I used shells
green beans
celery
olives
tomato gherkins
1 tbsp Mayonnaise
1 tbsp natural yogurt
1 tin tuna in spring water

1.  Chuck pasta into plenty of boiling water, after a couple of minutes add chopped green beans.
2.  Chop celery, tomato, black olives and gherkins (could also add any/all cucumber, spring onions, peppers, bean sprouts, shredded lettuce, radish...)
3.  Add tuna (drained), drain cooked pasta a beans, stir in with mayonnaise and yogurt (squeeze of lemon juice if you have any)

Scoff.  Simples.