If your food is unevenly heated it's probably because you need to adjust the cook time and power settings. Heating it longer at a lower power setting will let the heat spread more evenly.
Alternatively, check your microwave's wattage. I always have to adjust microwave instructions to be about 10% longer because my apartment's microwave is weaker than companies assume the standard microwave is.
✨ May better heated microwave food await you ✨