Add the oil to a sauté pan over medium heat. Once the oil is hot, add the cumin seeds and when they turn brown, reduce the heat to low and add the paneer. Stir-fry the paneer for 1-2 minutes then add the spices and mix well.
Add the bell pepper and onion masala and cook until the onion masala coats the paneer (you can increase the heat to speed up this process).
Notes
Roasted cumin powder is highly aromatic and has a more intense flavor than regular (unroasted) cumin. Do not substitute this with regular cumin as you won’t get the right favor.
To make roasted cumin powder: heat a skillet over low heat and dry roast cumin seeds (I usually do 1 cup) for 5-10 minutes, stirring occasionally until the color of the cumin changes to a dark brown. Turn off the heat and allow the cumin seeds to cool down. Place the cumin into a spice grinder and blend until smooth. Store in an airtight jar and use within 6-8 months for the most flavor.