Don't wait for partner to eat. Some nights make two portions of something he can reheat (or have cold in the case of salad) later, and then some nights just make something for yourself and let him sort out his own dinner. If you meal plan this makes everything clear so he's free to plan what he'll eat on the nights you're making something just for yourself. If that's crap oven food, that's his choice and doesn't affect what you're eating :) You could also do things like making 3-4 portions rather than two and freeze the leftovers, so that you have spare meals, for either of you to have whenever.
Other random thoughts:
Piles of veg might be a bit much, try cutting down the amounts, even if you do still feel hungry - it might take a few weeks to adjust to this. It's also a good idea to make sure you have some fibre in your meals as this will keep you fuller for longer. I tend to find that I prefer the taste of vegetables and protein to carbs/fibre, but it's helpful in terms of evening everything out. Whole grains are going to be more fibrous and filling for you than white, refined things.
Cereal bars are a bit crap in terms of nutrition and tend to be quite sugary and not very filling. The best thing to have for breakfast is something containing protein, what about trying eggs or porridge? Or if you don't want to prepare anything in the morning you can batch-make overnight oats, hard boiled eggs, breakfast wraps/burritos, savoury muffins or even home made cereal or fruit breakfast bars are usually better than shop bought ones. If you'd prefer not to do any prep at all then museli or bircher type cereal mixed with yoghurt, milk, and/or fruit can be delicious, instant porridge sachets, or wholegrain toast especially with something like nut butter rather than very sugary toppings - these would all be convenient and better options than cereal bars.
You can also make yourself a smoothie in about 30 seconds if you have one of those machines to make it right in the bottle, which seems to be the centre of a huge divide on MN 
- OK, it's not like it's a perfect health food, but it's still better than many commercial breakfast options, it's easy to make and take and if you add a source of protein it keeps you full for a while. It's also a useful method to wean yourself down from very sweet breakfasts - obviously if you keep making smoothies with ice cream, nutella and one token banana then it's not going to do you much good, but if you start off with things like sweet fruits and flavoured yoghurt you can switch ingredients out one at a time like plain yoghurt instead of flavoured, carrot instead of apple, etc, add protein sources like oats, nuts/seeds or protein powders, and combine strong flavours like berries to mask the taste of more bitter ingredients then you'll find you can change the make up over time.