So this is my current mix. The boys get about 1 and 1/2 cups of this mix daily, they tend to eat more in the winter so I adjust how much I feed based on how much they eat. They're fed in the morning when I first wake up, and if the bowl is empty around 6 PM, then I'll give them another half cup. It's usually still half full though. I've found a few products that make my life a LOT easier, like the Kashi cereal, parakeet seed, and multigrain medley. Those products have a combination of ingredients that I previously had to buy separately, and this way is not only easier but way more cost effective.
popping corn ⅓ cup
old fashioned oats 2 ½ cups
Healthy Select parakeet seed 1 ¼ cups
Kashi 7 whole grain puffs cereal (Red wheat, whole brown rice, whole oats, whole barley, whole triticale, whole rye, whole buck wheat, sesame seeds) 4 cups
pumpkin seed ¼ cup
cashew pieces ¼ cup
walnut pieces ¼ cup
Minute Rice Multigrain Medley (Brown rice, red rice, wild rice, quinoa) 2 packets.
lentils ½ cup
uncooked tricolored pasta 2 cups
dried mealworms ½ cup
garlic pieces ¼ cup
spirulina powder ¼ cup
and a liberal sprinkle of cinnamon powder
As you might have noticed, this mix is a lot more simplified than my other mixes. That's because I cut out all of the dried fruits, veggies, herbs, and greens and instead I feed those fresh daily. In the morning when their food bowls are filled, they also get a bunch of different fresh foods. Their veggies and fruit are skewered onto a few kabob toys (They LOVE chewing their veggies/fruit off of those!) and their herbs and greens are stuffed into a basket toy for them to dig out. This provides mental stimulation, but also encourages their natural foraging instinct, which I think makes for happier rats. I will probably end up introducing dehydrated veggies, fruits, and greens back into their dry mix when I get a food dehydrator and it's easier to do, but for now, this is fine What they get is dependent on what's in season and available, but they get a variety of things.
This is a list of what I give them. Obviously they don't get all of this every day, but they have a rotating schedule, and get most of this at least once a week:
bell pepper (red, green, orange, and/or yellow. I usually grab a few of each and switch it up) blueberries, raspberries, blackberries, strawberries, pomegranate, cantaloupe, honeydew, apple, pear, peach, plum, carrot, tomato, broccoli, cauliflower, celery, cucumber, greenbeans, peas, spinach, kale, dandelion leaves, mint, watercress, parsley, basil, cilantro, carrot tops, beet greens, swiss chard, collard greens, arugula, green leaf and red leaf lettuce, and romaine