I gathered some examples of wonderfully ugly things to eat.
Here's a nice soup. Just stare into its depths and meditate the ugliness. The less you actually know about the ingredients, the uglier it appears. Mystery always boosts ugliness, so buying frozen microwave meals is one of the best ways to achieve a hideous, ugly diet. The lovely thing about microwave meals is you never know what might be in them. Eww <3
A true masterpiece
Don't forget your fruits and veggies! They might appear pretty and colorful at first, but they actually have a great potential of ugly. All you need is a little time patience. Just leave them lying around somewhere far from your fridge, and let time do the trick. Within a week you will start to notice rotting or mold on your fruits, and that's when they are ready to be eaten. You could also turn the process into a game. Bet with a friend (flatmates are usually a good choice for this) whether the fruits or vegetables are going to turn rotten or moldy. The winner gets to eat all.
These raspberries are just mold bombs in disguise
You can use the advantages of time with any food. It also maximizes the smell factor, that completes the ugly experience. Never underestimate smells. Gagging in disgust it's probably the ultimately best way to bring in the ugly. I wish I could have attached the smell of these lentils in this blog.
Smells like fermented fart
Drinks can be ugly too. This is where you can get really creative. Even plain water can be turned into an exiting cocktail with pastes, spices, flour, the choice is yours. My personal favorite is fish sauce because of its breathtaking smelliness. I would suggest starting your experiments with a drink that's transparent, like water or Sprite, because seeing everything you've added into your drink makes it nastier. Milk is a great drink to start too, because it gets old so easily. Adding some strong alcohol into your milk will make milk curdle, and curdled milk is hardcore ugly.
Layers are not just for tequila sunsets
Desserts are often cute and adorable cupcakes with rainbow sprinkles on them, but it doesn't have to be so. Just google "ugly cake" and you will find an endless source of inspiration. (Seriously do that, it's magnificent)
Look at this romantic dessert for two:
THIS SHIT IS BANANAS
One of the good old ugly tricks is to make your food look like something else. It can remind you of some other familiar thing. Let your imagination flow.
I found an interesting news story about ugliness from back home, the Snowy-Snowy Land. Some used-to-be mega bosses of my home city said the beggars should be wiped out of the city streets, because they're ugly. WHAT KIND OF A REASON IS THAT? Besides, they're not even that ugly. It's so superficial to think that people are ugly, because ugliness requires hard work, and it doesn't come easy. You can't just become ugly inside out without constant effort and practice. Inheritance can help, but very few people are born naturally ugly. It's obvious those used-to-be mega bosses don't have a proper understanding of the true nature of ugliness.
May the ugly be with you.