I learned this over 50 years ago, when I used to keep a tin of peppers by me so I could make it easily, as they couldn't always be found in the shops! The variations are endless.
For 2:
chop an onion and pepper, fry gently in a little oil (garlic optional). When soft, add a tin of tomatoes (chopped )and boil until mot of the liquid has evaporated.
At this point, you can take some out for vegans.
Otherwise, take some eggs, you can whisk them up, turn off the heat, and scramble them in the hot veg. Or you can turn the heat down, make some dents with a spoon, break an egg in each, and allow them to poach.
Serve as it is with crusty bread.
Sprinkle on some chilli, and call it 'huevos rancheros'
Use extra egg, let it set, and it's Spanish Omelette.
Classically it is served with a few scraps of bacon or sausage, so you can do that for the meat eaters.
I have served this most weeks, in all its variations for most of my adult life. It was also useful, during those teenage years, when some stayed late at school, some had to go to sports training, and some of us were on shifts. I would make a batch of the basic veg, get plenty of bread, and a portion could easily be heated up and the egg added when needed.