I have never eaten anything so delicious! Easy and cheap potato recipe!

I have never eaten anything so delicious! Easy and cheap potato recipe!
Hi everyone! Today I present to you a delicious and easy recipe! Puff pastry rolls filled with potatoes and peppers are a perfect solution for a snack, snack or aperitif. Your family will love them! They're so easy and delicious, you'll make them again and again! I prepare them very often for an aperitif with friends and everyone always likes them! I recommend you try these delicious puff pastry rolls filled with potatoes, peppers and cheese and let me know in the comments what you think!

Ingredients:
- 4 potatoes
- 1 onion
- 2 peppers
- puff pastry
- 1 egg
- 80 g (3 oz) of emmental cheese
- Butter
- Salt and pepper