Tuna Pesto Penne Rigatto w/ Black Olives

I've found out that my former student, Jana (thank you for the photo). cooked tuna pasta with her home made pesto so I asked her if she could give me her recipe.  However just like me, she would sometimes cook using taste method...in short no particular rule in measurements of ingredients.  Anyway, that's what make us different and more at home with our cooking. 

Here is a good recipe in making this dish.  Trial and error until I was able to make a good one.

Ingredients
1/2 penne rigato
1 tin tuna in water
2 c fresh basil leaves
1/2 c freshly grated parmesan cheese or romano cheese
1/2 c extra virgin oil
1/3 c  walnuts
3 garlic cloves, minced
salt and  pepper to taste

Procedure
Cook the penne according to package instruction
Grind basil in your blender using pulse mode.  Add the garlic and continue to pulse. 
Add olive oil slowly.
Add the cheese.  Continue grinding.
Put in salt and pepper and grind again.
In a small bowl, put in the tuna (tuna in water tin). Add in the pesto (will depend on how much you want). 
Serve with noodles
Top with olives.

A comment or two will be appreciated...