I dont know of any sites per say, but here is a list of foods that can be incorperated into you diet:
Proteins:
Boneless, Skinless Chicken Breast
Tuna (water packed)
Fish (salmon, seabass, halibut)
Shrimp
Extra Lean Ground Beef or Ground Round (92-96%)
Protein Powder
Egg Whites or Eggs
Ribeye Steaks or Roast
Top Round Steaks or Roast (aka Stew Meat, London Broil, Stir Fry)
Top Sirloin (aka Sirloin Top Butt)
Beef Tenderloin (aka Filet, Filet Mignon)
Top Loin (NY Strip Steak)
Flank Steak (Sir Fry, Fajita)
Eye of Round (Cube Meat, Stew Meat, Bottom Round , 96% LeandGround Round)
Ground turkey, Turkey Breast Slices or cutlets (fresh meat, not deli cuts)
Complex Carbs:
Oatmeal (Old Fashioned or Quick Oats)
Sweet Potatoes (Yams)
Beans (pinto, black, kidney)
Oat Bran Cereal
Brown Rice
Farina (Cream of Wheat)
Multigrain Hot Cereal
Pasta
Rice (white, jasmine, basmati, Arborio, wild)
Potatoes (red, baking, new)
Lentils
Fibrous Carbs:
Green Leafy Lettuce (Green Leaf, Red, Leaf, Romaine)
Broccoli
Asparagus
String Beans
Spinach
Bell Peppers
Brussels Sprouts
Cauliflower
Celery
Other Produce & Fruits:
Cucumber
Green or Red Pepper
Onions
Garlic
Tomatoes
Zucchini
Fruit (if acceptable on diet): bananas, apples, grapefruit, peaches, strawberries, blueberries, raspberries
Lemons or Limes
Healthy Fats:
Natty Peanut Butter
Olive Oil or Safflower Oil
Nuts (peanuts, almonds)
Flaxseed Oil
Fish Oil
Dairy & Eggs:
Low-fat cottage cheese
Eggs
Low or Non-Fat Milk
Beverages:
Bottled Water
Diet Soda
Crystal Light
Condiments & Misc:
Fat Free Mayonnaise
Reduced Sodium Soy Sauce
Reduced Sodium Teriyaki Sauce
Balsamic Vinegar
Salsa
Chili powder
Mrs. Dash
Steak Sauce
Sugar Free Maple Syrup
Chili Paste
Mustard
Extracts (vanilla, almond, etc)
Low Sodium beef or chicken broth
Plain or reduced sodium tomatoes sauce, puree, paste
List by: Stella Juarez
Also, check out fitday.com or calorieking.com for references on the breakdown of macro/micro nutrients for any aforementioned food.