The phyllo dough sheets are usually rectangular. Cut them length wise in 3 stripes. SO it looks like lasagna pasta.
I like to keep these sheets under wet towel during the wrapping process to they don't get dry.
Take 2 strips stacked up, brush small amount of oil on the strip. Place 2 tbsp samosa filling at the top corner of the strip.
Start wrapping the top corner with filling in triangular shape, as shown in pictures.
You can stick the end of the strip using addible glue (1 part wheat flour, 2 part water). I like to just let mine be as is. You can cut the extra piece of strip if you like.
Place parchment pepper on a baking sheet.
Place wrapped samosa on a baking sheet and cover them with wet towel.
Continue the process of wrapping the samosas, placing them on a baking sheet and covering them under wet towel until all the samosas are wrapped and ready to bake.
Brush oil on both sides of the unbaked samosas.
Bake the samosa in the oven on 375°F for 18 minutes. Flip them all at 11-12 minute mark. You can bake them longer until they become golden brown and crispy. All ovens are different so it might take a bit longer or shorter to get to perfect crispiness.
Serve them hot with green and red chutney!