Potato stir fry - lunch ideas for a child

I missed last week...I apologise.

A friend who has a young son sent me a message to ask for ideas on how to prepare potatoes for lunch for her son to take to school. My first question was, is he a lover of vegetables? She said he eats it but it's not his favourite.
Well I told her that you can't go wrong with potatoes, it can be prepared in so many ways.

I have made this dish at different times and it's so easy to prepare. So without thinking hard, it was my suggestion to her:

Ingredients:
- Potatoes
- Butter
- Carrots
- Green beans
- Green and red bell peppers
- Onions
- Garlic
- Salt
- Seasoning cubes (optional)
- Turmeric
- Sausages

Please note - Some ingredients are optional/can be substituted, and should be what your child/you might like.