Baked Chicken Meatballs

Eric really likes these chicken meatballs from Smitten Kitchen.

Ingredients

3 slices Italian bread, torn into small bits (1 cup)
1/3 cup milk
3 ounces sliced pancetta, finely chopped (you can swap in Canadian Bacon if you can’t find pancetta)
1 small onion, finely chopped
1 small garlic clove, minced
2 tablespoons extra-virgin olive oil, divided
1 large egg
1 pound ground chicken
2 tablespoons tomato paste, divided
3 tablespoons finely chopped flat-leaf parsley

Preheat oven to 400°F with a rack in the upper third of the oven. Soak bread in milk in a small bowl until softened, about four minutes.
Cook pancetta, onion, and garlic in one tablespoon oil with 1/2 teaspoon each of salt and pepper in a large skillet over medium heat until onion is softened, about 6 minutes. (Alternately, as in “I thought of this after the fact”, I’d bet you could render the pancetta for a couple minutes and cook the onions and garlic in that fat, rather than olive oil.) Cool slightly.
Squeeze bread to remove excess milk, then discard milk. Lightly beat egg in a large bowl, then combine with chicken, 1 tablespoon tomato paste, pancetta mixture, bread, and parsley. Form 12 meatballs and arrange in another 4-sided sheet pan (I used a 9×13 roasting dish).
Stir together remaining tablespoons of tomato paste and oil and brush over meatballs (the paste/oil does not mix in any cohesive manner, but just smoosh it on and run with it), then bake in upper third of oven until meatballs are just cooked through, 15 to 20 minutes (though mine took a good 5 minutes longer).

I almost never have bread on hand, and getting a whole loaf just for this can seem like a lot; I subbed 1 cup panko for the bread.
Oh, and bacon (which we stock in the freezer) for the pancetta.