You shouldn't eat any ONE thing ALL the time! While sushi is "clean" you still need other things. You need a balance of some fruits and vegetables.
darker greens and vegetables
I don't think sushi would be $300 per week or anywhere close - if you ate out yes, it would be much more expensive, but not to make at home.
Have you looked into any of Mediterranean/Sonoma diets? I'm just saying for the recipes and variety. You'll get some suggestions/guidelines if you don't like exactly what you see.
Have you looked into the foods/recipes from Bill Phillips? Body For Life has some great recipes - the recipe book is definatley worth the money. Not EVERYTHING is wonderful but most of it is. I'll point you to the ones that are if you decide to get it. Here
is the page showing the different topics for recipes.
I have a stovetop smoker. That will give you variety in flavors. You can smoke a chicken breast, tuna, salmon, veggies. Any and all of these can then be made into another meal by making them into a wrap using a whole wheat tortilla and a low fat spread.
Yes, healthy eating is more expensive. There's no getting around that. But seriously, you need variety and I don't think it would be good to eat nothing but raw fish ALL the time! There are good carbs out there too.
I understand your thought process but it would get old VERY fast with no variety. Go to a chain bookstore and sit and look at several books. Bill Phillips, even Phil McGraw's cookbook is good, Sonoma Diet, Mediterranean Diet, just hit the healthy eating cookbook area.
Let me know what you think.
There's all sorts of "clean" recipes out there - I have some great ones. PM me if you want them.