My Dad who is from North India makes a tangy tomato masala sauce for me just like this one flavored with sweet caramelized onions, fresh ginger and garlic along with a delicate blend of aromatic Indian spices. In our house, this is our all-purpose curry sauce and the perfect base for making chana masala (chickpea curry).
Also note, my simmer sauces are all mild so you can make them for your household and each individual can modify the heat with one of our achaars. That's how we do it at home. Feed our toddler the sauce with veggies and a protein, grain and yogurt and then we layer on our achaars for kick!