Place the bratwurst in a grill pan, or skillet, on medium high heat. Sprinkle 1 tsp of garlic salt and 1 tsp of steak seasoning over the brats.
Cook for 5 minutes on each side.
Add the vegetables and bratwurst to your slow cooker. Top with beer, water, and remaining 1 tsp garlic salt and 1 tsp steak seasoning. Cover and heat on low for 6-8 hours (or high for 3-4 hours).
Serve on a french roll and enjoy!
Notes
Don't have brats? Swap out the bratwurst with another style of German sausage such as Frankfurters.
Feel free to mix up the colors of the bell peppers. Red, orange, green and yellow peppers are all delicious!
The sausage doesn't need to be cooked through when you add it to the slow cooker. It should be brown and charred on the outside. The inside will finish cooking in the slow cooker.