1. Preheat oven to 200°F; place a baking sheet in oven.
2. Prepare rice according to package instructions.
3. Stir in peas, and heat briefly to warm through.
4. Alternately thread pork and orange chunks onto eight 6-inch skewers; season with salt and pepper.
5. Heat grill pan to medium; brush with 2 teaspoons oil. Cook half the skewers until pork is opaque throughout, 4 to 6 minutes per side; transfer to oven to keep warm.
6. Brush grill pan with 2 teaspoons oil; cook remaining skewers.
7. In a small bowl, whisk together honey and mustard; season with salt and pepper. Reserve half of sauce for dipping.
8. Working in two batches, return skewers to grill pan, and heat over high, brushing with sauce, until glazed, about 2 minutes.