Salsa with ranch

2 tablespoons canola oil 1/2 white onion, finely chopped 2 cups canned fire-roasted tomatoes (such as Muir Glen brand) 2 garlic cloves, minced 2 serrano[...]

1 lb roma tomato , grated* 1 cup chicken broth 1/4 large white onion, roughly chopped 4 fresh serrano peppers, stems removed* 4 tablespoons fresh cilantro 3[...]