Wash and dry all produce.
Cut lime into wedges. Finely dice tomato, peel and thinly slice kiwi, and finely chop cilantro and onion.
In a small bowl, combine sour cream with a squeeze of lime juice. Stir in water until it reaches a drizzling consistency. Season with salt and pepper.
Heat a large drizzle of oil in a large pan over medium-high heat. Add poblano, sliced onion, and half the Southwest Spice (use the rest in the next step). Cook, stirring occasionally, until softened and lightly charred, 3-4 minutes.
Add pork to pan and cook, breaking up meat into pieces, until pork is browned and cooked through, 4-6 minutes. Season with salt and pepper.
Wrap tortillas in damp paper towels and microwave until warm and pliable, 30 seconds.
Divide tortillas between plates and fill with pork filling, salsa, and crema. Sprinkle with remaining lime wedges on the side.