Prep the veggies - shred the cabbage, chop the carrots into thin matchsticks or thickly grate it, cut the green pepper and jalapeños into thin strips.
Soak the rice noodles in hot water. Set aside to soften while you cook the vegetables.
In a saucepan over medium heat, add the oil, cabbage, carrots, green peppers and jalapeños. Allow to cook down, stirring occasionally, for about 5-8 minutes. The cabbage and carrots will soften and shrink down slightly.
Add salt, pepper to taste. Turn off the heat.
Set aside the cooked veggie filling to cool while you set up your spring roll making station.
Set out the spring roll sheets with a damp towel over top so they don't dry out. Keep a small bowl of water nearby. Drain the soaked rice noodles and keep them close. You may need to cut them with some scissors to make them easier to handle.
Peel off one spring roll sheet. Scoop 1-2 tbsp of the cabbage filling into the centre of the spring roll sheet. Add about 1-2 tbsp of noodles.
Tuck the two corners of the square into the centre of the spring roll, turn 1/4 turn so the open end faces you, and start rolling cigar style, making sure the tucked in ends stay folded in. When you get to the end of the spring roll, wet the corner with a bit of water to seal the spring roll.
Fry to freeze till ready to cook.