A glimpse at next week's company meal plan told me that I need to precook a lot. Unfortunately I learned much and didn't find the time to do much but I just put stuffed peppers into the oven.
It's really simple and up to a specific point even vegan. It also is the opportunity to use the roemer tot, clay cooker, or chicken brick. Here is a picture:
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And here are the pictures of the peppers and the filling:
I'll give you a report on how it tastes as soon as I ate it as lunch at work :)