Heat olive oil in large skillet on high heat.
Add onions and garlic and saute until flavors release.
Add red peppers and thyme and continue to saute.
Lower heat to medium, cover skillet and cook for 10 mins to allow flavors to combine.
Add kielbasa, tomatoes and vegetable stock and mix to combine, the cover once more and cook for a further 10 mins.
Heat canola oil in medium skillet on high heat until very hot but not smoking.
Lower heat to medium then add shishito peppers and toss regularly until they blister and char.
Remove thyme sprigs, from kielbasa mixture then add shishito peppers and carefully combine.
Remove from heat and serve as desired.