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Oven-Baked 4-Ingredient Macaroni and Tomatoes

  This oven baked 4-ingredient macaroni and tomatoes is pure Depression-era comfort food: simple pantry staples, tossed into one dish, and baked until the pasta is tender and the tomatoes turn saucy and cozy. On weeks when our grocery budget feels especially tight or I just don't have the energy for a fussy dinner, this is the first thing I suggest to friends—and the first thing I make for us.   Everything happens right in a glass casserole dish: you scatter in dry elbow macaroni, pour canned tomatoes over the top, add water and a knob of butter, then let the oven slowly do its thing. It's humble, filling, and tastes like something a grandma would have made to stretch a can of tomatoes and a box of pasta into a full meal.   Serve this macaroni and tomatoes straight from the casserole dish with a generous grind of black pepper on top. It's great alongside a simple green salad or steamed frozen veggies if you want to add something fresh without much extra effort. If you have it, a sprinkle of shredded cheese or parmesan on individual bowls makes it feel a little more indulgent. Leftovers reheat well in the microwave with a splash of water, so it's an easy make-ahead option for lunches during the week.  

Why You'll Love This Recipe

 

• Just 4 ingredients — an easy oven baked macaroni and tomatoes
• Pure Depression-era pantry comfort food
• Everything bakes in one casserole dish
• Budget-friendly and endlessly flexible
• Tender pasta in saucy, cozy tomatoes
• No boiling the pasta first
• Leftovers reheat beautifully for easy lunches

 

Why This Recipe Works

  This macaroni and tomatoes works because the pasta bakes right in the tomato liquid instead of being boiled first. The canned tomatoes and hot water give the dry macaroni everything it needs to rehydrate and soften as it bakes, while the foil traps steam so it cooks evenly all the way through. The butter melts into the sauce for richness, and the final uncovered minutes let the tomatoes thicken into a cozy, saucy coat. It's the original one-dish pantry dinner — humble, cheap, and deeply satisfying.  

Ingredients

 

• 2 cups dry elbow macaroni
• 2 cans (14.5 ounces each) diced tomatoes with their juices
• 2 cups hot water
• 2 tablespoons butter, cut into small pieces
• 1 teaspoon salt (or to taste, optional but recommended)
• Freshly ground black pepper, for serving (optional)

 

Ingredient Breakdown

 

Dry Elbow Macaroni

  The pasta goes in dry and bakes right in the sauce — no pre-boiling required.  

Diced Tomatoes and Hot Water

  Together they create the cooking liquid and the saucy, cozy tomato base. Hot water helps the pasta start softening right away.  

Butter and Salt

  Butter adds richness as it melts into the sauce; salt seasons the whole dish. A final grind of black pepper is the classic finish.  

Kitchen Equipment

 

• 2-quart glass casserole dish
• Aluminum foil
• A spoon for stirring

 

Step-by-Step Instructions

  Preheat and prep. Preheat your oven to 375°F (190°C). Lightly grease a 2-quart glass casserole dish so the pasta doesn't stick too much.   Add the macaroni. Pour the dry elbow macaroni evenly into the bottom of the glass casserole dish, spreading it into an even layer with your hand or a spoon.   Pour the tomatoes. Pour both cans of diced tomatoes, with all their juices, directly over the uncooked macaroni. It should look like the tomatoes are just covering the pasta in the dish.   Add the water. Pour the hot water evenly over everything in the casserole dish. Gently stir once or twice to make sure the macaroni is mostly submerged in the tomato and water mixture.   Dot with butter. Dot the top with the pieces of butter, spacing them out so they can melt and spread during baking. Sprinkle the salt over the top.   Cover. Cover the casserole dish tightly with foil to trap in the steam, which helps the macaroni cook evenly.   Bake. Bake for 40–50 minutes, removing the foil after about 35 minutes to check doneness. Give the mixture a good stir, making sure the pasta isn't sticking to the bottom and that most of the liquid has been absorbed.   Adjust as needed. If the macaroni is still a bit firm, re-cover loosely and bake for another 5–10 minutes, checking every few minutes until the pasta is tender and the tomatoes are saucy. If it looks too dry before the pasta is done, stir in a splash more hot water.   Rest and serve. Once the macaroni is tender, remove the casserole from the oven and let it sit for 5–10 minutes. The sauce will thicken slightly as it cools. Taste and adjust salt if needed, then serve with black pepper on top, if you like.  

Expert Tips

 

• Spread the dry macaroni evenly so it bakes uniformly
• Use hot water to give the pasta a head start
• Stir once or twice so the pasta stays submerged
• Space the butter pieces so they melt evenly into the sauce
• Cover tightly with foil to trap steam for even cooking
• Stir at the 35-minute mark and check for sticking
• Add a splash of hot water if it dries out before the pasta is tender
• Rest 5–10 minutes so the sauce thickens

 

Common Mistakes to Avoid

 

• Not covering tightly lets steam escape and the pasta cooks unevenly
• Forgetting to stir at the end means the pasta sticks to the bottom
• Letting it dry out before the pasta is tender — add hot water
• Adding too much salt before tasting (canned tomatoes vary)
• Using a pan that's too large spreads the mixture thin and bakes it dry

 

Ingredient Substitutions

 

• Canned diced tomatoes with basil, garlic, and oregano can replace plain
• Petite diced or crushed tomatoes work with a slightly different texture
• Olive oil can replace the butter for a lighter version
• Shells, rotini, or small pasta shapes can replace elbow macaroni (adjust liquid slightly)

 

Variations & Tips

  This recipe is meant to be as bare-bones and budget-friendly as possible, but you can still tweak it to fit what you have. For extra flavor without changing the basic four-ingredient concept, use canned diced tomatoes with basil, garlic, and oregano, or add a small pinch of dried Italian seasoning from your pantry. If you have an onion or garlic on hand, you can finely chop and scatter it over the macaroni before adding the tomatoes.   To make it a bit richer, stir in a handful of shredded cheese right after baking, or sprinkle cheese over the top and return it to the oven uncovered for a few minutes until melted and bubbly. For more protein, add a drained can of beans (like kidney or cannellini) or some leftover cooked ground beef or sausage to the dish before baking, adding a little extra water if it looks dry.   If you prefer a softer, almost casserole-style texture, bake it a bit longer and add a splash more water; for a firmer, less saucy version, let it bake uncovered for the last 10–15 minutes to evaporate more liquid.  

Make It Lighter

  This is a simple, hearty pantry dinner — here's how to keep the serving balanced.  

• Use olive oil instead of butter
• Go easy on the added salt since canned tomatoes carry sodium
• Serve a smaller portion alongside a big green salad or steamed vegetables
• Skip the optional cheese to keep it lighter

 

Meal Prep Guide

  This is an easy make-ahead dinner and lunch option. Bake a batch, portion it out, and reheat during the week with a splash of water. Leftovers reheat well in the microwave, so it's great for packed lunches.  

Storage

  Refrigerate leftovers in an airtight container for up to 4 days. Reheat with a splash of water to loosen the sauce.  

Freezing

  Freeze cooled portions in an airtight container for up to 2 months. Thaw overnight in the fridge and reheat with a splash of water.  

Reheating

  Reheat in the microwave or in a covered oven dish with a splash of water to bring back the saucy texture.  

What to Serve With It

  Serve this macaroni and tomatoes straight from the casserole dish with a generous grind of black pepper on top. It's great alongside a simple green salad or steamed frozen veggies. A sprinkle of shredded cheese or parmesan on individual bowls makes it feel a little more indulgent.  

Beverage Pairings

 

• Iced tea or sweet tea
• Cold milk
• A glass of cold beer
• Sparkling water with lemon

 

Frequently Asked Questions

 

Do I have to boil the macaroni first?

  No. The dry macaroni bakes right in the tomato liquid and hot water, softening as it bakes. No pre-boiling needed.  

Can I put uncooked pasta in the oven?

  Yes, as long as it's covered and has enough liquid. The foil-trapped steam cooks the pasta evenly right in the dish.  

Why is my macaroni still firm?

  It likely needs a few more minutes. Re-cover loosely and bake another 5–10 minutes, adding a splash of hot water if it looks dry.  

What if it's too dry before the pasta is done?

  Stir in a splash of hot water, re-cover, and continue baking until the pasta is tender.  

Can I add protein or cheese?

  Yes. Add drained beans or leftover cooked ground beef or sausage before baking, and stir in or melt shredded cheese over the top for a richer version.  

Can I make this ahead of time?

  Yes. It reheats beautifully and makes an easy make-ahead lunch. Refrigerate up to 4 days or freeze up to 2 months.  

Nutrition Information

  Approximate values based on 4 servings. Note: canned tomatoes and added salt contribute sodium — adjust to taste. Values are estimates only and should not be considered professional nutritional advice.   Per Serving (about 4 servings):  

• Calories: 260 kcal
• Carbohydrates: 42g
• Protein: 7g
• Fat: 7g
• Saturated Fat: 4g
• Cholesterol: 15mg
• Sodium: 770mg
• Fiber: 2g
• Sugar: 4g

 

Final Thoughts

  Humble, filling, and impossibly cheap — this is the pantry dinner a grandma would have stretched from a can of tomatoes and a box of pasta, and it still tastes like home.   Are you keeping it bare-bones or adding a little cheese and protein? From my kitchen to yours — saucy tomatoes, tender macaroni, and a twist of black pepper.  

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