If I were making Spanish tapas-style albondigas I'd use a mixture of beef and pork mince and make them small. I don't use eggs (though a yolk in the mix is unobjectionable) and I definitely wouldn't use breadcrumbs. I'd be inclined to make them quite spicy so I might add a bit of smoked paprika and a pinch of dried chipotle chilli flakes, to taste, as well as salt and pepper to the meat mix. Smoky is good. Make them into small balls as mentioned earlier and brown them for four or five minutes only in hot oil. Set the meatballs aside, leaving the oil in the pan. For the tomato sauce I'd use good-quality canned plum tomatoes (don't buy ones with salt added). Slice a couple of cloves of garlic and sauté them in the meatball pan. Add more oil if needed, which it probably will be. No cheap oil please. To be authentic, use a Spanish extra virgin olive oil. Get the garlic sizzling but don't let it go brown. You could add some chilli flakes too, bearing in mind that you've already spiced up the meatballs. A pinch of dried oregano make evverthang super. Add the tomatoes and some salt and a scant teaspoon of sugar. Break up the tomatoes a bit and let it simmer without the lid on for half an hour or until you see the oil wanting to float. After the first fifteen minutes or so, throw in the meatballs. For a tapas table you could have the meatballs, padron peppers fried in hot oil (I do them outdoors as they spit and smell) then sprinkled with sea salt, some strong blue cabrales cheese and, to start with, a little bowl each of well-chilled salmorejo with some cold crumbled hard-boiled egg yolk and some little slivers of jamon iberico on top. Maybe a bowl of olives and some crusty bread for the cheese. Get your guests in the mood with a bottle of Cava and have a nice Rioja to hand as things get going. Good living is that!