Cut a ripened avocado in half. Remove the pit and scoop out the insides of the avocado. Place the insides of the avocado in a food processor. Add 1/2 cup cilantro leaves, 3 cloves minced garlic, 3 tbsp fresh lime juice, 1/2 cup plain yogurt, 3 tbsp olive oil, and 1/2 tsp salt to the food processor.
Pulse only for 1 second at a time. Pulse until the avocado cream sauce comes together. It should take about 8-12 pulses before the avocado crema is ready.
In a medium sized bowl, add coleslaw mixture of shredded carrots, red cabbage, and green cabbage.
Pour a little bit of avocado crema over the coleslaw and mix together. Add more crema sauce if needed.
Your coleslaw is ready to be added to your shrimp tacos. More avocado crema can be drizzled on top of your shrimp tacos as a sauce if desired.