I'm a fan of rice and beans because they're fast & easy. There are a variety of canned beans that come already seasoned such as Kuner's southwestern beans or Joan of Arc spicy chili beans. Heat those up and toss them over a microwaveable packet of brown rice, throw on one of those little pre-measured cups of guacamole and some salsa and you have a meal. Hanover also makes seasoned frozen beans, some of which are pretty tasty. Beans are your number one weapon in combating cholesterol.
I've also, when pressed for time, nuked some frozen mixed veggies and tossed them with either spices or a bit of soy sauce and had that with quinoa or rice.
The problem I've found with most packaged foods is that they're usually dangerously high in sodium. I like Tasty Bite's vegan Indian entrees over brown basmati rice but the sodium levels are too high imo for regular consumption. http://www.tastybite.com/products/
Do you not have time to prepare foods made from scratch like a simple stir fry or chili? At least that way you can control what goes into your food.
It also doesn't sound as if you're eating very much, calorie wise. Be aware that if you're also losing weight while trying to control your cholesterol it may backfire since burning excess body fat can often temporarily raise cholesterol levels. I would advise incorporating some flaxseeds into your daily diet since they're been shown to help reduce cholesterol as well as increase your intake of leafy greens, steamed as well as raw.
Despite being a vegan most of my life, I have the potential for high cholesterol unless I strictly control what I eat and the best way I found to bring things under control was to prepare food from fresh ingredients as often as possible.