Pasta Salad...

Ingredients
500g pasta tricolore
1 cup frozen peas
1 cup chopped carrots
1 cup frozen corn
1 big tomato (cut into cubes)
1 cucumber (cut into cubes)
2 canned tuna or 1 chicken breast (cooked on grill)
100g gruyere cheese (cut into cubes)
400g greek strained yogurt
200g mayonnaise light
1 teaspoon black pepper
1 tablespoon salt

Preparation
Step1
Boil pasta for 10 minutes.
Step2
Add peas, carrots and corn and boil for 10 more minutes.
Step3
Strain pasta with vegetables.
Step4
In a big bowl put tomato, cucumber and gruyere cheese cubes.
Step5 
Chop canned tuna or grilled chicken breast and add in the bowl.
Step6
Add salt and black pepper and stir together.
Step7
Add pasta and vegetables and stir.
Step8
Put greek strained yogurt and mayonnaise light into another bowl and mix together.
Step9
Add yogurt mixture into the big bowl and stir with the other ingredients.
Step10
Put the salad in the refrigerator for 1-2 hours.