My mom is a dietician, so I'll try to answer this the way she would.
1. Cheese and crackers is actually a healthy snack. She is getting calcium from the cheese, and the crackers could be healthy depending on what kind you buy. Look for crackers that are similar to what you already buy, but that are made with whole grains and/or have at least 2 grams of fiber listed on the food label.
2. Meat- will she eat peanut butter sandwiches, or snacks with peanut butter as a main ingredient? Peanut butter and other nuts are a good source of protein. You can buy trail mix that includes peanuts and other nuts. Since it will also have m'n'ms in it, it seems like junk d=food, but it's mostly pretty healthy. Especially if you get one with raisins or other dried fruits.
3. Potatoes are a starch or carb food. So if she is getting healthy carbs with the crackers I mentioned above, not specifically eating potatoes is not a big deal. (But try potatoes baked, with sour cream, onions or chives, shredded cheese and bacon bits, plus steamed broccoli. Kids seem to like those.)
4. A healthy meal that would cover carbs and meats would be hotdogs on whole wheat buns and corn on the cob (which is a starch/vege).
5. Try roasting veges on the grill with olive oil for a delicious tasting and fun way to eat veges. Use shish-kabob skewers to make it more fun.
6. You can use skewers to put cubed and small fruits on too.
7. Parfaits are like a dessert but still very healthy. Lowfat, low-sugar yogurt with fruits and a touch of granola. Add a couple of vanilla wafers on the side and it'll be like a dessert.
8. chips- try the new versions of baked chips that lots of chip and cracker companies are coming out with. They are very tasty. Look in the cracker aisle to find them. If you are going to buy chips, stick with tortilla chips and look for low sodium and low calorie chips otherwise. Encourage melted cheese on chips (not the nacho cheese, but real cheese you shred).
9. Cereal- try the compromise-type cereals. Shredded wheat, but only the frosted kind, for example. Milks can be chocolate milk or strawberry milk to make them more enticing.
10.. With some creativity, you can make healthy food seem like junk food. And if you don't buy junk- I know you say she won't eat, but if you stick with it long enough, she will start eating more healthfully, at least at home.
11. Also, involving your child in the shopping for food should help too. Print out a food guide or "food pyramid" so you have a visual of the food groups with you. Have her choose the foods from each group that you will buy that week. You will find also that eating healthier will cost you a lot less than eating junk, so maybe a money incentive would work with your child. Compare the grocery bill from a typical shopping trip including junk food with one from a trip buying just healthy food. If there is a difference, you could give her the extra money to spend as she chooses. (If you don't want her buying junk food, specify that it has to be a non-food item).
These are just some tips from me using what I have learned from my mom over the years- I hope some of it will be helpful to you.