The pic you posted is 100% mapo tofu. It is not a stew. It can be served with noodles and as a noodle soup at some places, but this is the normal version of mapo tofu.
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Kylie Kwong has a great recipe in her book Simple Chinese Cooking
https://www.amazon.com/Simple-Chinese-Cooking-Kylie-Kwong/dp/0670038482