5 months PP and no weight loss

After the initial Like 15 pounds right after having baby I haven't lost anything. I'm not breastfeeding. I haven't been working out. I Was walking at the park for a while and lost another like 10 pounds but I've gained it back now. I still have pregnancy cravings for Mexican food. Seriously. I can't go without it. I hated it before I got pregnant and I still eat there almost daily now. Any tips and advice?

I weighed 160 at the end of pregnancy and currently weigh 145. I was around 130 when I got pregnant.

Also I had a c section and the overhang is awful.