Meal ideas - Specifically lunch and dinner

I do a few things. I don't like to eat breakfast early so I take a refrigerator oatmeal for a mid morning snack. In a small mason jar add 1/4 cup yogurt (if using plain you can add a couple table spoons of maple syrup or agave syrup), 1/4 oats, 1/4 milk (almond, soy etc), 2tsp chia seeds (optional) top with frozen fruit and put in the fridge overnight. I make a few of these up and take to work each morning.

I also mix up salads in mason jars. dressing goes on the bottom, chunky veggies like peppers, onions, mushrooms, chicken etc next and lettuce on top (as far from the the dressing as possible). You can make a few at once and keep them in the fridge. Make for a great grab n go. You can google mason jar salads and you will get many ideas!

I make my favourite southwestern quinoa salad! Its a great source of protein and is very filling. With that I make a pizza with cauliflower crusts and that makes great left overs to take to work very simple recipes and again google is your friend!

Lettuce wraps filled with tuna etc are a wonderful low carb solution for lunch. Have fun on your search for new recipes

I'm assuming you have fridge/freezer access since you mentioned frozen meals. I would just stick a few basics in the fridge like a cartons of liquid egg whites, almond milk, lettuce, other veggies, etc. I tend to make and eat really simple meals because I know exactly what I like. I mix egg whites, cinnamon, splenda, and flax seeds and make an omelet/crepe thing but you could just microwave it since eggs cook just fine in the microwave. Another thing I'd suggest getting is some wraps. I reccomend Joseph's Bakery lavash (available at most grocery stores) since it's 100 calories, 10g protein and huge. I use lettuce, onions, and almond cheese in mine but you can use whatever you'd like. You could also keep one of those big things of quick oats there and just throw in some flax seeds, cinnamon, PB2, almond milk, or whatever you like in it (those are just my favorites). Those are all things that can be made in five minutes or less. For snacks, you could keep fruit, yogurt, and vegetables like cucumber and baby carrots in the fridge.

So you have access to everything you need! I usually bring a sandwich (deli meat, 40cal bread, sprouts, Kraft sandwich spread) and a bunch of snacks - 1/2 avocado, string cheese, grapefruit, Cambells soup to go (70cals!), yogurt, hardboiled eggs, raw carrots/tomatoes/cucumbers etc.