The Half Pressed Veggie Sandwich

By AislePrompt Editorial · Published 2026-04-05 · Updated 2026-04-05

A locally inspired sandwich featuring equal layers of roasted sweet potato and caramelized onion on house-made sourdough, pressed to perfection. This American-inspired quick recipe, ready in about 45 minutes, pairs sourdough bread, sweet potato, red onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 480 calories and feeds 2, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 4 slices sourdough bread
• 1 medium, peeled and sliced into 1/4-inch rounds sweet potato
• 1/2 cup, thinly sliced red onion
• 1 tbsp olive oil
• 1 tsp balsamic vinegar
• 1/4 tsp garlic powder
• 3 tbsp mascarpone cheese
• 1 cup mixed greens

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Instructions

1. Step 1: Preheat oven to 400°F; toss 1 medium peeled sweet potato (sliced 1/4-inch thick) with 1 tbsp olive oil, 1 tsp balsamic vinegar, and 1/4 tsp garlic powder, then roast for 20 minutes until edges are crisp and tender.
2. Step 2: While sweet potatoes roast, heat 1 tsp olive oil in a skillet over medium-low heat; add 1/2 cup thinly sliced red onion and cook for 12 minutes until deeply caramelized and golden.
3. Step 3: Spread 3 tbsp mascarpone cheese evenly on 2 slices of sourdough, top with 1/2 cup mixed greens, then layer with roasted sweet potato slices and caramelized onions.
4. Step 4: Top with remaining sourdough slices, press gently with a heavy skillet for 3 minutes until bread is toasted and cheese melts, then cut in half and serve immediately.