Adam saying he doesn't want to do weights tilted me, like girls saying "I don't want to get big, I want to tone!!!!!"
You're not going to gain a bunch of muscle when you're eating in an extreme deficit.
Weight training would burn additional calories (more efficiently than cardio unless you're doing very hard cardio which it doesn't sound like) - both during and post workout (
https://en.wikipedia.org/wiki/Excess...en_consumption), and prioritize fat loss vs muscle loss (skinny-fat is better than plain fat, but still looks bad, and having more lean body mass = higher metabolism)
People who lift weights are bigger because they eat more because they are training to get stronger and build muscle. You don't do 5 bicep curls and become Arnold. Natural lifters train 4+ days a week on a strict program and eat structured diets high in calories and protein just hoping to gain maybe a pound of muscle a month if they're lucky.