Becoming vegan should encourage you to explore new ingredients, and it should also introduce you to more global dishes. A great many dietary traditions around the world are already plant-based, which means that vegans and vegetarians have many rich, exciting culinary traditions to draw upon.
If you're new to plant-based cooking, explore meatless dishes and recipes from other parts of the world. Dust off your spice rack and add new flavors to your food. Use your transition to plant-based eating as an excuse to try new grains, legumes, and vegetables.