In a medium bowl, combine the stevia, chili powder, black pepper, cumin, paprika, salt, dry mustard, and cinnamon.
To prepare the salmon
In a large skillet over medium heat, heat the coconut oil for about 5 minutes.
Liberally coat each salmon fillet with 1 tablespoon of mustard.
Season each fillet, on both sides, with an equal amount of the rub. Set aside.
Once the coconut oil has heated, increase the heat to medium-high. Add the salmon and sear for about 2 minutes. Flip and reduce the heat to medium. Cook for 6 to 8 minutes more, until the fish, is opaque.
To make the green beans
In another large skillet over medium heat, heat the butter and olive oil. Add the garlic and cook until fragrant, about 1 minute.
Add the green beans, salt, and pepper. Cover and reduce the heat to medium-low. Cook for 10 to 12 minutes, stirring occasionally.