Heat beans in a skillet over med-high 3-5 min until warm (or microwave in a covered, microwave-safe bowl about 1-2 mins)

Meanwhile, heat 1 tbsp oil in skillet over med-high + sauté pepper mix with salt/pep 4-5 min or until soft + starting to brown; set aside

Heat 1 tbsp oil in skillet over med-high; pat shrimp dry + sauté with salt/pep 2-3 min until shrimp is pink, opaque + cooked through

Stack 4 tortillas on a plate + wrap with a damp paper towel; microwave 15-30 sec or until warm + soft; fill each taco with beans, veggies + shrimp, then divide between plates