Batch cook and freeze legumes, beans and pulses!
I have a cheapo version of an instant pot, and I have started buying dried puy lentils, mung beans, and Chickpeas.
I cook them with stock and then freeze them in weighed portions which amount to about 200kcal depending on the bean etc.
Tonight I had mung beans fried with 1/4 tbsn of avocado oil, half an onion, 2 fried eggs and some chilli crisp oil. It was 600 kcal and it was 10 minutes to puf together. It was oh so good, honestly, it made me not even care the family were eating home made French bread pizza.
It's the way to go!