Bring water and 1 teaspoon salt to a boil in a medium saucepan. Add couscous, and simmer, covered, until tender, about 8 minutes. Transfer to a large bowl.
Meanwhile, heat 1 tablespoon oil in a medium high-sided skillet over high heat. Cook the bacon until golden brown then take it out of the pan and put it over some paper towels so most of the grease is absorbed.
Then in the same pan cook the garlic, zucchini, asparagus and brussels sprouts leaves until tender and lightly browned, about 5 minutes. Remove from heat. Season with salt and pepper.
Stir the veggies sprouts leaves into couscous. Stir in remaining tablespoon oil; season with salt and pepper. Serve warm or at room temperature.