Start by warming the olive oil in a skillet over medium heat until it shimmers. Add in the crushed garlic and oregano, and let them sizzle until they are fragrant, typically about a minute. Keep an eye on it to prevent the garlic from browning too much, as it can get bitter.
Stir in the chopped sun-dried tomatoes, letting them mingle with the garlic for another 2-3 minutes. You will notice the vibrant red color deepen and the aroma become more intense. Avoid adding them too early to keep them from overcooking and losing flavor.
In a separate bowl, whisk the arrowroot flour with some water to avoid clumps and create a smooth blend. Aim for a lump-free mixture so that your sauce has a silky texture. Mix well, as dry pockets can lead to a grainy sauce later on.
Pour the dairy-free milk into the skillet and let it mix with your sun-dried tomato concoction. The color will change to a lovely creamy hue. This is crucial for ensuring your sauce has a nice body, so give it a gentle stir to incorporate everything well.
Add the tomato paste and blend it into the sauce, letting it simmer for a few minutes until it thickens slightly. The sauce will start to take on a luscious consistency, which indicates success. Be careful not to let it boil too hard, as that can alter the flavor.
Stir in the vegan parmesan until it melts fully into the sauce. You will notice the creaminess increase. If it is too thick at this point, splash in a bit more dairy-free milk for that perfect consistency.
While the sauce is coming together, cook your chickpea pasta according to package instructions until al dente. Once ready, drain and give it a light toss with some olive oil to keep it from sticking. Overcooking can make it mushy, so timing is key here.
Once the pasta is drained, add it right into the skillet with the sauce and toss gently until every noodle is coated. The visual of the bright sauce clinging to the pasta is inviting. Be careful not to over-mix to keep the pasta nice and whole.
Finish it off by tossing in the fresh basil just before serving. The basil adds a fresh touch that brightens everything up. Keep some extra basil on hand for those who want an extra burst of flavor!