Breakfast - you can just have the basics such as toast or a healthy cereal, or you can have some fruit and pour some natural yoghurt over the top. You can also do this with your cereal for a healthier breakfast.
Lunch - crisp breads and crackers with cream cheese and pepper on top are one option also homemade soup with some bread or crackers again is also just as healthy.
Dinner - Mixed salad with fish and lemon juice is extremely healthy and lovely in the summer, but if your not a fan of fish then chicken or ham can also be used as a replacement.
Workout - I feel that you sometimes need a motivation to do a workout session especially if you don't go to the gym. I uses to go jogging but sometimes that can get too repetitive, but if your doing it from home I would recommend a workout DVD. They usually have a few different workouts that you can pick from and I find them really easy and motivating as you have someone talking you through it all the way. I have the Amy Child's workout DVD with is good for toning and loosing weight, but you have to be eating healthy as well before you see the benefit. I am the worst for forgetting to do a workout session everyday but I have been doing it for the last week and you won't see the benefit straight away, but you do feel better for it.