Chef John's Rocket Beans

Ingredients (8)

• ✓ 4 slices bacon, sliced crosswise into 1/2-inch pieces
• + 1 tablespoon olive oil add to pantry
• + 1 (15 ounce) jar butter beans, drained and rinsed add to pantry
• + 1 pinch salt and freshly ground black pepper to taste add to pantry
• + 1 pinch salt and freshly ground black pepper to taste add to pantry
• + 3 cloves garlic, minced add to pantry
• ✓ 2 cups arugula, coarsely chopped
• ✓ ½ lemon, juiced