Add the ginger, cumin, turmeric, ground coriander, and green chili to the pan. Fry them for about 1 minute until they're fragrant and the spices darken slightly. Then, add the chopped tomatoes, mashing them with the back of a spoon as they cook.
Simmer for 5 minutes, until the sauce thickens and smells aromatic. If it seems too thick, add a splash of water. Season with salt and pepper. Stir in the peas and continue to simmer for another 2 minutes. Finally, add the fried paneer and sprinkle over the garam masala. Give it a good stir to combine everything. Divide the matar paneer between two bowls, garnish with fresh coriander leaves, and serve hot with naan bread, roti, or rice.