Begin by heating the olive oil in a large pot over medium heat.
Add the finely chopped red onions to the pot, and sauté until translucent.
Introduce minced garlic, diced carrots, and chopped celery. Stir well and sauté for another 5 minutes.
Add the venison chunks to the pot, searing on all sides until brown.
Once the venison casserole chunks are well-seared, pour in the broth.
Add in thyme, rosemary, bay leaves, salt, and black pepper.
Mix well and let it simmer for 1 hour on low heat.
After 1 hour, add the cubed potatoes and water to the pot.
Continue to let the Venison casserole – one pot, healthy, full of flavour simmer for another 30 minutes.
Check the seasoning, adjusting salt or pepper if needed.
Once cooked, remove the bay leaves, thyme, and rosemary sprigs.