Heat 1½ tablespoons butter and 1 tablespoon oil in a large pan.
Add garlic-chili paste and sauté for 1 minute.
Add onions and sauté 1 minute.
Add tomatoes, bell peppers, and salt.
Cover and cook for 4–5 minutes, stirring occasionally.
Mash the mixture lightly with a potato masher.
Add 1 cup water, remaining pav bhaji masala, and turmeric. Mix well.
Cook covered for 6–7 minutes.
Add ¾ cup more water and mix.
Add mashed veggies and peas. Mix thoroughly.
Let simmer for 5 minutes on medium-low heat.
Add kasuri methi, cilantro, and ½ tablespoon butter. Cook 1 minute and turn off heat.
Add lime juice and stir.