If you want to keep the recipe from being too spicy, you can always eliminate the berbere spice blend altogether. In this case, I would still add some sprinkles of cinnamon, paprika, nutmeg, and cumin. You can omit the cayenne altogether!
To eat the Zigni in a traditional manner, you can also make Injera, a bread that the Eritreans use to scoop up the stew.
If you’d like to try a non-traditional, but also delicious way to eat this stew, you can serve it with the same ingredients you would serve chili with! When I tried it this way, I added sour cream, green onions, shredded cheese, and tortilla chips to the top of my bowl. It was delicious, and also provided my spicy-resistant mouth some sanctuary from the spiciness.
The recipe is fairly greasy for Western Taste. If you want a less greasy version of the Zigni, you can use less vegetable oil or even omit the butter altogether! This should help immensely if that is what you’d prefer.