Help with preserving my glut of red peppers please

[greenishfing]

Unbelievably this year my peppers have given me a generous crop. I usually get some green ones at the end of the season which I use in salads or freeze for curries but this year they have actually ripened to red and I will have a few trays full.

I need to preserve some. For the first time this year I successfully roasted and froze tomatoes with garlic, basil and olive oil . Can I do the same with peppers?

I have heard of people packing them in jars of olive oil but others saying they go slimy.

Has anyone got a foolproof recipe?

[Thelma Sanders]

Make Peperonata
A link was easier than typing it out,

Peperonata Recipe | The Authentic, Traditional, Sicilian Dish

I freeze this in small portions, but you can bottle it - simmer filled jars for about 20mins to sterilize.