1 each red and yellow bell pepper, seeded and chopped into 3/4" pieces
1/2 large red onion, peeled and chopped into 3/4" pieces
3 large garlic cloves, peeled and smashed
2 tablespoons good-quality olive oil, divided
2 (15.5 ounce) cans cannellini beans (white kidney beans), drained and rinsed
3 tablespoons good-quality red wine vinegar
1 tablespoon freshly-squeezed lemon juice
Kosher salt and freshly ground black pepper, to taste
Finely chopped fresh parsley, to taste