Take a skillet and pour a few drops of canola oil.

Throw some chopped onions in the skillet.

After the onion, add some chopped garlic.

Add serrano chiles to the skillet.

Sauté the veggies until the onion gets translucent.

Now switch to another skillet and put the tomatoes in it.

Put the cooked veggies in a food processor or a blender.

Before blending the veggies, add salt, black pepper, and lime juice.

Put the cooked tomatoes in the blender.

Lastly, give the veggies a good blend.

Your salsa is ready to serve. Enjoy!