Hmm. How recently did you start hitting the gym hard? Yeah. 1500 calories on average with your height/weight is a cause for concern. I think you should really refigure out your RMR and then subtract up to 500 calories from that. You may notice that you have 'toned' up, but that is most likely from newbie gains as you just recently started hitting the gym seriously. After that, you may see it taper off or even plateau completely.
Also, yes...Lean Cuisine is most likely not the best option for when you are trying to lose weight. It's not about 'losing weight', it's about eating healthier in a -sustainable- manner. I don't think people can live off Lean Cuisine forever. Plus, not to mention how processed and crappy it is. I'm sure you can get the same caloric number and BETTER nutritional value if you have whole foods, such as a salad or some nice meat and sauteed veggies. What is your dinner like, by the way? And how are your macronutrients (fat/protein/carbs) looking?
You seem to be going to the gym a lot and hitting it pretty hard...40 min cardio + 50 weight lifting? That's a lot of time spent at the gym, when you can do something just as effective and more time efficient (15-20 minute hard cardio and 30-50 minute lifting). But if you are willing to take up 90-ish minutes at the gym per day, that's your call.

Also, don't forget about your resting days, as that is the most important thing!!! How is your workout week split? Such as for me, MWF is lifting (30-50 min depending on what workout phase I'm in) and TuTh is HIIT/sprinting (never more than 25 minutes, with 5 minute warm-up and 5 minute cool-down at the gym...or up to 45 minutes when I'm walking/jogging outside to a park and then I spend 5 minutes total doing sprints in the field). This makes me think you can definitely eat about 2000+ calories a day and still lose.
I'm glad you are starting up again! It's a great start! But I'm just worried about you being able to maintain your current regimen. Losing weight shouldn't mean temporary drastic change...it should be sustainable and long-term change. Keep it up
