Greens: Mustard, collard, kale, Swiss chard, turnip greens,
Vegetables: Brussels sprouts, sweet potato w/ skin, pumpkin, summer & winter squash, carrots (not too many), broccoli, cucumber, bok choi, romaine lettuce, celery, green peas (in small amounts), green beans
Fruit: blueberry, strawberry, apple, banana, pineapple, cranberry, cantaloupe, watermelon, apricots, fresh lemon juice (I squeeze it over fish)
Spices: Thyme, clove, ginger, parsley, rosemary, basil, oregano, garlic (not too much. Too much garlic can cause anemia).
I feed a cooked "stew" of vegetables to my dogs. There's a lot of discussion out there whether dogs can process all the nutrients available in vegetables if the vegetables are in their regular form (ie, if you just give your dog a carrot). Some believe that you have to at least grate up the raw vegetables. Others think that you have to cook the vegetables. I cook mine and my dogs really like it. So that's good enough for me!
Let me know if you want more info.
I start a large stockpot of about 16 oz water, chop up some greens, add some veggies, some fruit, & spices, all of which I've either chopped finely or run at "grind" through the blender first. (The blender approach is easier). Sweet potatoes are a staple in every batch. These help make the stew thick, help tone down the bitterness of the greens, and give it a yummy taste!
Greens provide a ton of essential vitamins. That's why I use them, even though they create bitterness that needs to be subdued.
The fructose of the fruit will also offset the bitterness of the greens. But I try to avoid too much fructose, which is sugar. Then I just cook it (with lid on) until it's about a stew consistency. I freeze it in smaller Zip loc storage containers then defrost as I need it and mix with the raw meat, about 1/2-2/3 cup of stew daily. Each time I make the "stew," it's a little bit different, so there's always variety. I have a bunch stored in my freezer, so I mix it up as I defrost batches. I've found that as I make the stew, if I make something that tastes palatable to me, the dogs will like it, so I taste as I go.
This sounds like a hassle, I know. The first time or two, it will seem that way. But then it's just a quick process to get everything into the pot and it boils on its own. I usually make a batch every two weeks, and that lasts me about three or four weeks. But I like to have extra in my freezer just in case.
Vitamin C is lost in the cooking, so I stir in uncooked foods with vitamin C as well (berries, lemon juice, red bell pepper).
I personally stay away from tomato, eggplant and bell pepper in my stew (which is fed to both dogs) because I have an older dog and arthritis is an issue. I separately feed raw red bell pepper to my younger dog for vitamin C.